Electronic energy management system: lithium battery management and generator control -Lithium - Ion Battery Equipment
With the development of automobile technology, there are more and more on-board electronic facilities and entertainment facilities. These electronic systems increase the pressure on vehicle energy. Under normal circumstances, when the power consumption is 1kW, it consumes 0.7-1.2L per 100km.
With the development of automobile technology, there are more and more on-board electronic facilities and entertainment facilities. On the one hand, these electronic systems increase the pressure on vehicle energy. Under normal circumstances, under the condition of power consumption of 1kW, it consumes 0.7-1.2L of gasoline per 100km, and energy is facing an increasingly scarce situation; On the other hand, it also makes the case that the car cannot start due to the failure of the electronic system become an important reason for the failure of starting.
At the same time, the number of cars continues to increase, and emission pollution has become one of the most concerned issues in the world. At present, Europe has introduced regulations on limiting CO2 emissions. According to the regulations, from 2012 to 2015, the CO2 emissions of vehicles must be reduced from the current 160g/km to 120-125g/km. It is estimated that by 2020, the CO2 emission of automobiles will not exceed 95g/km. This regulation makes automakers have to consider reducing CO2 emissions in future car designs, or face high fines. Therefore, we urgently need to find solutions to reduce CO2 emissions and save energy.(Lithium - Ion Battery Equipment)
Bosch Automotive Electronics Division has been committed to the research and development and matching of electronic energy management systems. Bosch electronic energy management systems are composed of battery sensors, controllable alternators and main control units integrated with electronic energy management software.
Battery status detection and charge and discharge optimization
Using the electronic energy management system, the battery status can be monitored timely through the battery status monitoring algorithm integrated in the battery sensor. Correspondingly, the battery and sensor working strategy can also be set in the control system of the main control unit, and the working range of the battery can be set. According to the current battery charging state, battery temperature and vehicle driving conditions, the corresponding strategy can be used to control the generator. Charge the battery in time. During this process, the energy supply of the whole vehicle is in a completely closed-loop control state, thereby ensuring the energy supply of the whole vehicle, optimizing the energy management of the whole vehicle, ensuring the minimum current required for the engine to start again, and preventing the failure caused by battery breakdown. The vehicle cannot start the problem again.
Generator Working Voltage Dynamic Control
At the same time, the electronic energy management system can also use the controllable alternator to dynamically change the operating voltage setting of the generator to optimize the engine torque distribution and vehicle energy management.
Traditional generator control cannot utilize excess mechanical energy, and the operating voltage is also uncontrollable. When the car needs a higher torque during acceleration, the traditional generator will still consume a large amount of engine torque, and the electronic energy management system can adjust the torque demand of the generator by dynamically controlling the working voltage of the generator to optimize the power of the car. Torque demand during operation. When the car is accelerating, the system reduces the operating voltage of the generator, thereby reducing the torque demand of the generator torque, so as to ensure that more energy is supplied to the car for acceleration. Conversely, when the car is decelerating, the generator voltage can be increased so that the system can use the excess mechanical energy during deceleration to charge the battery.
In the case of normal battery charging and discharging, if the sensor detects that the battery is in an undercharged state, the main control unit will increase the working voltage of the generator accordingly, improve the charging efficiency of the generator, and perform fast charging. When the battery power is in a saturated state, the generator voltage is correspondingly lowered to keep the generator in an idling state, so as to prevent unnecessary overcharging of the battery, thereby reducing the consumed torque. This can reduce fuel consumption and keep the state of charge within a safe range, ensuring that the battery works in a benign range and prolonging battery life.
With the development of automobile technology, there are more and more on-board electronic facilities and entertainment facilities. On the one hand, these electronic systems increase the pressure on vehicle energy. Under normal circumstances, under the condition of power consumption of 1kW, it consumes 0.7-1.2L of gasoline per 100km, and energy is facing an increasingly scarce situation; On the other hand, it also makes the case that the car cannot start due to the failure of the electronic system become an important reason for the failure of starting.
At the same time, the number of cars continues to increase, and emission pollution has become one of the most concerned issues in the world. At present, Europe has introduced regulations on limiting CO2 emissions. According to the regulations, from 2012 to 2015, the CO2 emissions of vehicles must be reduced from the current 160g/km to 120-125g/km. It is estimated that by 2020, the CO2 emission of automobiles will not exceed 95g/km. This regulation makes automakers have to consider reducing CO2 emissions in future car designs, or face high fines. Therefore, we urgently need to find solutions to reduce CO2 emissions and save energy.(Lithium - Ion Battery Equipment)
Bosch Automotive Electronics Division has been committed to the research and development and matching of electronic energy management systems. Bosch electronic energy management systems are composed of battery sensors, controllable alternators and main control units integrated with electronic energy management software.
Battery status detection and charge and discharge optimization
Using the electronic energy management system, the battery status can be monitored timely through the battery status monitoring algorithm integrated in the battery sensor. Correspondingly, the battery and sensor working strategy can also be set in the control system of the main control unit, and the working range of the battery can be set. According to the current battery charging state, battery temperature and vehicle driving conditions, the corresponding strategy can be used to control the generator. Charge the battery in time. During this process, the energy supply of the whole vehicle is in a completely closed-loop control state, thereby ensuring the energy supply of the whole vehicle, optimizing the energy management of the whole vehicle, ensuring the minimum current required for the engine to start again, and preventing the failure caused by battery breakdown. The vehicle cannot start the problem again.
Generator Working Voltage Dynamic Control
At the same time, the electronic energy management system can also use the controllable alternator to dynamically change the operating voltage setting of the generator to optimize the engine torque distribution and vehicle energy management.
Traditional generator control cannot utilize excess mechanical energy, and the operating voltage is also uncontrollable. When the car needs a higher torque during acceleration, the traditional generator will still consume a large amount of engine torque, and the electronic energy management system can adjust the torque demand of the generator by dynamically controlling the working voltage of the generator to optimize the power of the car. Torque demand during operation. When the car is accelerating, the system reduces the operating voltage of the generator, thereby reducing the torque demand of the generator torque, so as to ensure that more energy is supplied to the car for acceleration. Conversely, when the car is decelerating, the generator voltage can be increased so that the system can use the excess mechanical energy during deceleration to charge the battery.
In the case of normal battery charging and discharging, if the sensor detects that the battery is in an undercharged state, the main control unit will increase the working voltage of the generator accordingly, improve the charging efficiency of the generator, and perform fast charging. When the battery power is in a saturated state, the generator voltage is correspondingly lowered to keep the generator in an idling state, so as to prevent unnecessary overcharging of the battery, thereby reducing the consumed torque. This can reduce fuel consumption and keep the state of charge within a safe range, ensuring that the battery works in a benign range and prolonging battery life.
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