Vehicle battery state of charge,best battery for zmax review,honda fit key fob battery - Downloads 2016

16.10.2013
REDARC have just announced the release of Lithium Iron Phosphate (LFP) In-Vehicle Battery Chargers designed specifically for charging Lithium Iron Phosphate (LiFePO4) type batteries.
Australian designed and made, the LFP In-vehicle battery chargers are based on REDARC’s award winning BCDC platform, making them more efficient than anything else on the market. Lithium Iron Phosphate batteries are becoming more popular due to their improved storage capacity relative to size and weight, making them perfect for recreational vehicle power systems.
A unique two stage charging profile ensure the auxiliary battery is able to achieve and maintain an optimal charge.
The LFP chargers feature a Maximum Power Point Tracking (MPPT) solar regulator allowing the use of solar power to boost the power supply. The range also is tailored to suit every unique experience, there is the option of 25 or 40 amp output models to choose from to suit the battery size, required charge rate and application. TECHNICAL FIELDThe present invention outlines a method and apparatus to determine the state of charge (SOC) of a lead-acid battery operating in a hybrid electric vehicle (HEV).BACKGROUND OF THE INVENTIONIn today's automotive market, a variety of propulsion or drive technologies can be used to power vehicles.
Battery - An electrical reservoir used to store electrical energy until it is needed by the vehicle's starting system to crank the engine. Following reports of Nevada being chosen due to generous tax breaks, the automaker has confirmed the deal, worth approximately $1.25 billion. The American state of Nevada has been chosen as the official site for Tesla's upcoming electric vehicle battery factory behemoth. The so-called Tesla Gigafactory will produce battery cells, modules and packs for Tesla electric vehicles (EVs), and the automaker predicts the factory will be shipping out 35GWh of cells and 50GWh of packs per year by 2020, as well as producing EVs suitable for the general public at a base price of $35,000. According to the Reno Gazette-Journal, Nevada's financial incentives for Tesla to choose the state amount to roughly $1.25 billion spread over 20 years. A drained car battery can be started by attaching jumper cables to the battery of another car with a charged battery. The battery in a car is used to power the vehicle during ignition and provide energy for the lighting system. The glass mat kind of car battery is radically different from the VRLA, sealed, and flooded types of batteries. When storing sulfate batteries, it is important a person to ensure that they are always charged, preferably to the maximum. When you start to have electrical problems with your car, how do you tell whether the problem lies with the battery or the alternator?
LED RL-BI001 golf cart, Boat, Motorcycle Digital Battery Discharge Indicator Meter 12V Battery Condition Indicator - Solar System, Forklift, Golf Cart or other DC battery powered equipment Application Used for forklift trucks, Golf Carts, RV's, Boats, Scooters and electric vehicle. DESCRIPTION Model BDI is an inexpensive, easy to install Battery Discharge Indicator (BDI). Applied with high quality lithium-ion battery, all environmentally friendly, free of tox and hazards substances, safe and reliable.
Intelligent Car Battery load analyzer Testers 12V Battery Tester (QW-Micro-100) The MICRO-100 series combines industry standard conductance technology for providing quick and accurate state-of-health decisions on batteries used in every car and truck OEM in the world. Since the launch of the first generation in Japan in 1997, Prius has maintained its status as Toyota’s technology ambassador, an eco-car that regularly brings valuable next-generation technologies and innovations to the marketplace.
The fourth-generation Prius provides an impressive and integrated platform upon which Toyota is taking safety and driver assistance technologies to a higher level.
Working within a broad speed range that extends from 6mph to 112mph, the Pre-Collision Safety System and related Pre-Collision Safety System with Pedestrian Protection uses a front-mounted monocular camera sensor and millimetre-wave radar sensor to detect vehicles and pedestrians on the road ahead. If the system calculates that a collision is imminent, it automatically warns the driver with a buzzer and alert in the multi-information display. The Adaptive Cruise Control system in the new Prius comes with a Full Speed Range Following Function, which makes additional use of the millimetre-wave radar at the front of the car to maintain a safe distance from the vehicle ahead.
If changes in that distance are detected, the system can either slow the car slightly, apply the brakes to come to a complete standstill, or accelerate smoothly back to the pre-selected cruising speed once the way is clear.
Lane Departure Alert makes additional use of the monocular camera in the windscreen to track the vehicle’s course between lane markings painted on the road surface. If it judges that the car is about to move out of its lane without the indicator being used, the system sounds a buzzer and illuminates a warning on the multi-information display. Automatic High Beam makes additional use of the monocular camera in the windscreen to recognise the lights of approaching vehicles or traffic ahead. As soon as the road is clear, the system then returns the headlights to high beam to maximise night-time illumination and the driver’s field of vision.
Road Sign Assist is the third and final system to make use of the monocular camera in the windscreen – in this instance to recognise principal road warning and command signs. These signs are then replicated on the multi-information display, reducing the risk of the driver not being aware of speed limits, lane closures and other important information. The 2016 Prius is available with additional system that support safer driving by offering real-time information about the area immediately around the car, including a Blind Spot Monitor and Rear Cross Traffic Alert. The Blind Spot Monitor uses radar sensors mounted on the rear corners to detect nearby vehicles in adjacent lanes as they move into the driver’s blind spot.
The same radars are used to provide the Rear Cross Traffic Alert function, monitoring approaching traffic from either side as the vehicle reverses out of a parking space and warning the driver if any vehicles are detected.
In addition, a new, intelligent parking sensor system helps avoid the kind of low-speed impacts that can happen during parking manoeuvres, regardless of accelerator or brake operation. The 2016 Prius showcases Toyota’s new Simple Intelligent Parking Assist system, which uses an array of on-board sensors to identify viable parking spaces and surrounding objects. The driver stops the car next to the parking space and pushes a single button to engage the system, which guides the car to the correct position for reverse manoeuvring into the space.
Toyota has improved the look and performance of the multi-information display in the central instrument binnacle.
The right-hand section presents speed, fuel level and other basic data, while the left section is where the driver can select preferred content using a switch on the steering wheel.
For the first time in a Toyota vehicle, Prius is now available with a colour head-up display.
Content includes vehicle speed, the state of battery charge, hybrid system status, Adaptive Cruise Control with Full Speed Range Following Function setting and Lane Departure Alert. The automatic air conditioning system in the 2016 Prius is smaller, lighter and uses less power, benefiting from a new S-Flow function to improve efficiency.
Other advances in the system include a new evaporator that uses less energy and a new electric compressor that is quieter and delivers better cooling performance. As well as making the cabin environment more comfortable, the system’s multiple new features also improve fuel efficiency.
The new Prius is available with a wireless phone charger, located in the lower section of the centre console. Toyota (GB) PLC is a company registered in England and Wales with registered company number 0916634 with it's registered office at Great Burgh, Burgh Heath, Epsom, Surrey, KT18 5UX. They do, however require specific charging conditions in order to operate correctly.  REDARC have considered this and designed a charging profile to compliment the in-built battery systems. The LFP charger constantly monitors the vehicle battery input charge level and turns off charging should the charge drop or if the vehicle is switched off, so it will ensure that your battery does not go flat, keeping you on the road for longer.
The MPPT regulators deliver the maximum available amount of power from solar panels to an auxiliary battery, even during low light conditions.
Low voltage models are also offered for vehicles fitted with an ECU controlled variable voltage alternator. The present invention includes steps to determine a current-based state of charge while accounting for such factors as current, temperature, charge efficiency, parasitic losses and self-discharge. The method of claim 1 wherein the Peukert factor is determined using the average discharge current of the battery. The method of claim 1 further comprising the step of determining parasitic losses for the battery and compensating the current based state of charge measurement based on the parasitic losses.
The method of claim 1 further comprising the step of determining the self discharge of the battery and compensating the current based state of charge measurement based on the self discharge of the battery. The method of claim 6 further comprising compensating the first state of charge measurement for temperature effects. The method of claim 6 further comprising compensating the first state of charge measurement based on charge efficiency variations caused by regeneration of the lead acid battery.
The method of claim 6 further comprising the step of compensating the first state of charge measurement by comparing the first state of charge measurement to the second state of charge measurement.
The method of claim 6 further comprising compensating the first state of charge measurement based on battery capacity degradation. The method of claim 6 further comprising the step of mapping the open circuit voltage to the second state of charge.
The method of claim 12 further comprising the step of determining the second state of charge measurement during discharge conditions for the battery.
The method of claim 12 further comprising the step of compensating the second state of charge measurement based on voltage shifts after charging of the battery. The method of claim 12 further comprising the step of compensating the second state of charge measurement based on battery resistance changes. There is the ignition system, the charging system, and some that you do not ever think about. A simple spark, when delivered at precisely the right moment, can mean the difference between a smooth running and powerful engine that operates cleanly and an engine that runs rough, lacks power and produces unnecessary emissions. The site will employ approximately 6,500 people, and the investing companies -- Tesla and Panasonic -- hope the factory will be operational by 2017. Bringing down the cost of EV batteries means the savings can be passed on to consumers -- which in turn may improve adoption rates -- and it is hoped that battery performance will also climb, eventually allowing an EV to go up to 200 miles on a single charge. The publication says the generous tax incentives include sales tax abatement, property tax abatement, transferable tax credits, job-based tax credits and discounted electricity rates.


To sign up for more newsletters or to manage your account, visit the Newsletter Subscription Center. The battery is usually charged by an alternator — a device that converts the mechanical energy from the engine into electrical energy. In gasoline engines, it is also used to ignite the fuel, so this type of engine cannot work without a battery.
The most common is the flooded type, which is basically an arrangement of lead plates immersed in sulfuric acid in a pseudo-open reservoir. One type has safety valves that allow for the safe escape of hydrogen and oxygen gases generated during charging. Its composites are boron silicate glass mats saturated with electrolyte between the plates.
One is the nickel metal hydride (NiMH), which packs a relatively higher energy within a unit of space.
Discharged sulfate batteries tend to degrade by sulfating, which involves the formation of large lead-sulfate crystals in the batteries. I think the easiest answer I can tell you is to go to your local automotive store and have them check it. If the voltmeter goes down, it's probably because the truck isn't getting the 2 extra volts from the alternator. For the last couple weeks, the voltmeter on the dashboard of my truck has been going back and forth between 14 volts (where it usually is) and 12 volts.
It is completely solid state and provides a reliable, accurate, and easy to read display of battery state-of-charge.
Six of these advances come within the full suite of Toyota Safety Sense features fitted as standard to all new Prius models, while others seek to improve driver comfort and the overall ownership experience. At the same time, a Pre-Collision Brake Assist programme engages to provide extra braking force the moment the brake pedal is pressed. If the vehicle is still moving outside the line, it will apply steering force to help the driver bring the vehicle back on course. When these come within reach of the headlights’ high beam, the system automatically switches to low beam to avoid dazzling other road users. The driver is alerted to their presence by LED warning indicators in the door mirror on the appropriate side of the car. Improvements to the technology allow it to work in parking spaces up to 22 per cent smaller than previously. Data and images are now presented in full colour with high-resolution graphics on a dual, 4.2-inch display. This projects essential vehicle data and alerts on to the lower section of the windscreen, making information instantly and easily readable without the driver having to take their eyes off the road ahead.
It registers whether the seats are occupied and adjusts ventilation and heating performance accordingly, minimising airflow around any empty seats.
The driver can monitor how efficiently the air conditioning is being used with a new Eco-judge function that calculates a performance score every second. Using Qi technology, this allows compatible smartphones to be recharged without having to manually connect a cable.
Each propulsion system has specific technological, financial, and performance advantages and disadvantages, depending on the state of energy prices, energy infrastructure developments, environmental laws, and government incentives.The increasing demand to improve fuel economy and reduce emissions in present vehicles has led to the development of advanced hybrid vehicles. This energy is then used to prompt reactions within the electrolyte of the battery, which is most commonly composed of lead oxide plates submerged in a mixture of sulfuric acid and water.
Diesel engines may work without batteries, if the initial electrical energy is provided at ignition.
This type requires regular topping up with distilled water to compensate for the water lost as hydrogen and oxygen gases during the electrolysis process. There is another type of VRLA battery that doesn't have safety valves and instead has an additional catalyst surface on which the two gases recombine to form water again. By using the recombinant technology, they don’t lose hydrogen or oxygen, and they also store charge for a much longer period, losing only 1% to 3% monthly. Nearly every store will do this for free, since it is pretty easy if you have the right equipment. Whenever it drops down to 12, the battery light usually comes on. The truck seems to still drive okay, though, and I have never had a problem with it starting. If I am not mistaken, though, their ability to hold a maximum charge can diminish over time, so I would guess that car companies are looking for other alternatives. Like you mentioned, they are very expensive to buy brand new, but as long as the used ones are in good condition they should work for several years.
If the system determines that the possibility of a frontal collision is now extremely high, the brakes are automatically applied to help avoid the collision or help reduce the impact force.
It also monitors the air conditioning temperature settings, external temperature and amount of sunlight, to calculate the most efficient operating parameters. Performance can be reviewed on the multi-information display; after the engine is turned off, an average score is calculated, with tips of how the air conditioning can be better operated.
The correlation of the open circuit voltage to the state of charge is dependent on the battery's mode of operation. Hybrid electric vehicles (HEV) are classified as vehicles having at least two separate power sources, typically an internal combustion engine and an electric traction motor. When a battery is in use, the sulfuric acid reacts with the lead oxide plates, to form lead sulfate.
A slight modification of this results in a different type of battery known as a sealed battery, which is basically a flooded battery which is sealed so that no water can be lost. They are usually two to three times more expensive than the normal flooded batteries, however. The batteries should be stored in a cool place, as warm temperatures result in a higher rate of discharge and corrosion at the contact plates.
Even if you have to buy two used ones, it's usually a lot cheaper than buying one new one. I didn't realize that there were so many different kinds of batteries in cars, though.
The present invention is adaptive to battery aging by updating the battery resistance, correcting coulomb errors, and accounting for capacity degradation while in operation. A hybrid electric vehicle will generally operate with a high-voltage battery pack (?42 V) operating an electric motor running in conjunction with the ICE.Hybrid vehicles, as compared to standard vehicles driven by an ICE, have improved fuel economy and consequently reduced emissions. Recharging the battery involves reversing this reaction, which allows it to store energy chemically. Another option is silica gel batteries, but due to their slow recharge rates, they are not common in cars.
What exactly is the purpose of the alternator, and how long will it last if it is going bad?
During varying driving conditions hybrid vehicles will alternate between separate power sources, depending on the most efficient manner of operation of each power source. They will check your battery, alternator, and starter, and let you know if any of them are coming up with bad readings.
Are there any easy tests to determine whether my battery is still good or if something else might be causing the problem?
I wasn't thinking about all the new types of batteries that have come about for the electric cars. For example, a hybrid vehicle equipped with an ICE and an electric motor will shut down the ICE during a stopped or idle condition, allowing the electric motor to restart the ICE and eventually propel the vehicle, improving fuel economy for the hybrid vehicle.Hybrid vehicles are broadly classified into series or parallel drive trains, depending upon the configuration of the drive trains. In a series drive train utilizing an ICE and an electric traction motor, only the electric motor drives the wheels of a vehicle. The ICE converts a fuel source to mechanical energy to turn a generator, which converts the mechanical energy to electrical energy to drive the electric motor.
In a parallel hybrid drive train system, two power sources such as an ICE and an electric traction motor operate in parallel to propel a vehicle.
The MoGen utilizes the stored energy in the battery pack to propel or drive the vehicle when the ICE is not operating. During operation, the ICE will be shut on and off intermittently, according to driving conditions, causing the battery pack to be constantly charged and discharged by the MoGen. The state of charge (SOC, defined as the percentage of the full capacity of a battery that is still available for further discharge) is used to regulate the charging and discharging of the battery.Currently, the most cost-effective, commercially-ready battery for HEV applications is the lead-acid battery. Lead-acid batteries have been widely used in the automotive industry for starting-lighting-ignition applications in the last hundred years. However, in a hybrid application, the power loads and usage are much heavier than that used in previous lead-acid battery applications. To operate efficiently in HEV applications, a lead-acid battery needs to operate near its optimal SOC to maximize its discharge and charge power capabilities.The discharge and charge reactions in the lead-acid battery are not symmetric, as in other battery technologies such as nickel-metal hydride and lithium-ion batteries. That is, the discharge battery resistance is typically lower than the charge battery resistance, which includes secondary gassing reactions at a SOC>60%. Accordingly, a voltage-based SOC for a lead-acid battery is usually based on discharge data only.
However, in a HEV application where there are continual regeneration events, the battery discharge voltages are shifted higher due to increased concentration of sulfuric acid after a charge. The present invention provides a method and apparatus to accommodate the effect of regeneration on the discharge voltage, and thus predict a more accurate and consistent SOC.SUMMARY OF THE INVENTIONThe present invention integrates three independent methods for determining the battery SOC of an electric or HEV during vehicle operation.
The present invention is optimized to determine the SOC of a lead-acid battery using factors uniquely relevant to a lead-acid battery. For example, the present ISOC method accommodates for charge inefficiency due to secondary gas reactions and current (Peukert) effect on the discharge capacity.
The VSOC and RSOC calculations in the present invention consider the discharge data in predicting the OCV at any time during operation of a battery and compensate for regeneration effects.The SOC determination of the present invention relies heavily on the VSOC and is adaptive to changes in the battery due to temperature and aging.


Furthermore, when the vehicle is off, a measured open circuit voltage can be correlated to the RSOC.
4 is a flow chart of the rest-based SOC method (RSOC).DESCRIPTION OF THE PREFERRED EMBODIMENTFIG.
The hybrid vehicle 14 includes a battery pack 16 having a single battery module or individual battery modules. In the preferred embodiment, the battery pack 16 comprises a plurality of lead acid battery modules connected in series. In alternate embodiments of the present invention, the battery pack 16 may comprise any known battery technology including, but not limited to nickel metal hydride, lithium-ion, and lithium polymer batteries. MoGens 20 in the preferred embodiment are located on the rear of the vehicle to drive the rear wheels 17 and on the front of the vehicle to drive the front wheels 18.The MoGens 20 are controlled by an electrical control system comprising a hybrid system controller 23, DC-DC converters 24 and power inverter modules (PIM) 25.
In alternate embodiments of the present invention, the EMC 15, hybrid system controller 23, DC-DC converters 24, and power inverter modules 25 may be configured as a unitary system. The EMC 15, controller 23 and inverter modules 25 determine the direction of current flow for the MoGen 20, according to the vehicle 14 operating state. The DC-DC converters 24 provide and regulate the DC Bus that is pulse-width-modulated by the inverter modules 25 to supply time varying current to the MoGens 20. In a regeneration state (such as during braking) or charging condition, current will flow from the MoGens 20, via the inverter modules 25, to charge the battery pack 16 and provide current to the DC-DC converters 24. The EMC 15 and hybrid controller 23 of the present invention will control a battery pack's state-of-charge (SOC) near 50% to 70% so that the charge acceptance and efficiency during regenerative braking can be realized. The sign convention in the present invention is written as negative for discharge and positive for charge. They are compensated for various factors such as current, temperature, charge efficiency, parasitic losses, and self-discharge, as will be described later in the specification.Because the capacity of a lead-acid battery is dependent on the discharge current known as the Peukert effect, it is pertinent to determine the capacity at various discharge rates.
The battery pack 16 capacity will change depending on the most recent average discharge current, such as a discharge current measured in the last five minutes. For example, if the battery pack 16 had been initially discharging at a fast rate and then switched to a slower rate, more capacity would be available at the slower rate.
2, an average discharge current may be determined from primarily the discharge portion of the drive cycle. The average discharge current should be representative of the rate at which the battery pack 16 capacity is being removed. Therefore, the time period over which the cumulative discharge is summed should be sufficient to reflect the recent discharge history of the battery pack 16 such as approximately five minutes. Also, the time constants for updating the average discharge current should be long enough such that the average discharge current is not constantly changing.
If the average discharge current from the previous driving cycle is not available, the default value can be set to the C-rate, which is defined as the discharge current needed to deplete the capacity of the battery back 16 in approximately one hour.Typically, the battery capacity discharged at the C-rate is considered the usable capacity in a HEV application and is defined as BP_Capacity_Default at a reference temperature such as 25° Celsius. 4.Besides having an accurate prediction of the battery pack 16 capacity, it is important to have an accurate amp-hour count of the charge going in and out of the battery pack 16 to determine an accurate ISOC. Numerous sources of uncertainty such as charge inefficiency due to secondary gassing reactions, parasitic losses, and self-discharge exist. Errors generated by these sources of uncertainty may be mitigated by using various methods of compensation.Referring to FIG.
2 at block 110, the uncorrected amp-hour counts are added separately for discharge and charge (regeneration).
The self-discharge rate of the battery, Self_Discharge_Rate, is dependent on the battery's SOC and temperature and needs to be pre-determined for the selected battery. These adjustments are discussed in the VSOC and the RSOC portions of the present specification.
Large fluctuation in these factors can be avoided by limiting the allowable rate of change for these factors.Voltage-based SOC (VSOC) Method During DischargeIt is well known that the open circuit voltage (OCV) of a lead-acid battery is dependent on the sulfuric acid concentration at the electrode surfaces, which correlates to a lead-acid battery's SOC.
However, the SOC versus OCV correlation is dependent on several factors such as the prior current and time at which the OCV is measured. In an HEV application, there are continual regeneration events, which can further complicate the correlation. 3.The VSOC calculation is deactivated under certain conditions as shown at the start of the VSOC flow chart at block 202.
First, the VSOC measurement for the present invention is determined using discharge data only. During charge, the module resistance includes an added complexity associated with the secondary gassing reactions occurring at the electrodes. Accordingly, the voltage-based SOC uses the discharge and not regeneration data in the VSOC determination. The SOC determination of the battery pack 16 should rely on ISOC during regeneration events. Low discharge currents may also back-calculate to an abnormally high OCV particularly after a regeneration event because of their low polarization voltages. Therefore, for low discharge currents whose magnitude is less than the C-rate, the VSOC will not be updated.The VSOC of the present invention is preferably not determined for the battery pack 16 after long rests when the sulfuric acid at the electrode surface has equilibrated with the bulk electrolyte. The additional polarization associated with the diffusion of the sulfuric acid back to the electrode surface will give a false, lower SOC reading. The VSOC of the present invention is preferably deactivated initially until the conditions at the electrode surfaces stabilize, which can be until the magnitude of the Ah_Discharge is greater than the BP_Capacity as also indicated in block 202. The SOC determination of the battery pack 16 in the present invention should rely on the ISOC when the VSOC is deactivated.The SOC of the worst performing battery module in the battery pack 16 will dictate the SOC of the battery pack 16. Accordingly, the lowest module's voltage and corresponding current are used to determine the VSOC.
The lowest module is selected by comparing each module voltage with a calculated normalized module voltage. The normalized module voltage uses values of pack voltage and pack current that are synchronized with the module voltages being evaluated. The total strap resistances, Total_Strap_Resistance, between the modules in the battery pack are also measured. The current-voltage data for this module are synchronous.To correlate to the VSOC, it is preferable to use a measured OCV after a discharge pulse greater than C-rate in magnitude. Equation 18 assumes that the Module_Resistancei and OCV have not changed significantly in the time interval, ti?ti?1. It is important that a consistent time interval be used to calculate the Module_Resistancei because the battery voltage changes continually with time.Furthermore, the Module_Resistancei is calculated for discharge currents whose magnitude is greater than the C-rate. If the OCV_Instant is allowed to relax for a longer time period, such as for one minute, the SOC-OCV correlation is less dependent on the prior discharge current. This transient behavior is associated with the diffusion of the sulfuric acid between the electrode surface and bulk electrolyte. The OCV_Tansient_Slope indicates the direction and rate at which the OCV relaxes to its semi-steady state value.
Following a discharge pulse, the OCV relaxes to a higher value, so the transient slope is positive. Whereas following a charge pulse, the OCV relaxes to lower value, and the transient slope is negative. During charge, sulfuric acid is being produced at the electrode; therefore, the local concentration of sulfuric acid is high causing the voltage to be high when discharge is initialized. The 60-second OCV following the discharge pulses would be correlated to the SOC, thus generating a SOC?OCV calibration curve, which can be described as a fitted equation or in a look-up table. A set of SOC?OCV calibration curves shall be pre-determined for a variety of conditions including, but not limited to temperature and battery aging.Because of the voltage hysteresis effect, the SOC versus OCV relationship is dependent on whether the battery pack 16 is operating in a charge decreasing or charge increasing mode. To assess the degree of voltage hysteresis, the SOC?OCV calibration curves are determined separately for a charge decreasing and a charge increasing operation at different temperatures. The voltage difference between the charge decreasing and charge increasing SOC?OCV calibration curves is fairly constant, so it may be more convenient to use one SOC?OCV calibration curve for each temperature rather than both. Therefore, if the charge decreasing SOC?OCV calibration curve is selected, then an offset can be used to shift any charge increasing data to the charge decreasing calibration curve.A Hybrid_Current_Average is defined in block 218 to determine the mode of battery operation. It can be calculated by dividing the cumulative (discharge and charge) amp-hour by time and updated by a time interval such as every five minutes. If the Hybrid_Current_Average is zero, the battery pack 16 is in a charge-sustaining mode of operation. OCV—60s_Compensated is correlated to VSOC using the charge decreasing SOC?OCV calibration curve, which is a function of temperature and battery aging, in block 222.The VSOC and the ISOC are compared at block 224.
If the VSOC is similar to the ISOC, the battery pack SOC or Pack_SoC is set equal to the VSOC to be used as the correct SOC for the battery back 16 in block 226.
If the VSOC and the ISOC are not similar, then there will be a correction using Ah_Correction for the ISOC value at block 228.The Ah_Correction is based on the difference between the VSOC and the ISOC. At block 302, if the vehicle 14 is on, then the ISOC and the VSOC will be determined at block 304 as previously described, and the RSOC method will not be executed. If the vehicle 14 is off, then at the end of vehicle operation in block 306, the control module shall record the OCV of the lowest module at 60 seconds, OCV—60s_Rest, after the last current pulse (preferably discharge).
A large discharge (>C-rate) pulse will give a relatively better SOC correlation than a charge current. At block 314, the RSOC is determined by using the OCV—60s_Rest_Compensated based on the SOC?OCV calibration curve depending on the temperature and battery age.The RSOC is compared with the VSOC at block 316.
Accordingly, the scope of this invention is to be considered limited only by the following claims.



Does walmart sell surefire batteries
Car battery prices jacksonville fl 5k


Comments Vehicle battery state of charge

  1. SCKORPION
    Batteries benefit from frequent charging, which helps out shopping guidance in order to make.
  2. Samirka
    Are of similar type and specifications favorite.
  3. DodgeR
    Smoke produced by flaming fire, smouldering fire with the use of microprocessor technology hood.
  4. HAPPY_NEW_YEAR
    Allow the consumer to apprise of the such as surge.
  5. Ilqar_10_LT_755
    Gyroscopic technology, users need only to rotate charge in your battery batteries in use.