Vehicle power management system
A power management system and battery technology, applied in the field of automotive power management systems, can solve the problems of rising load power, increasing quiescent current control, affecting the parking time of the whole vehicle, etc., and achieving the effect of reducing quiescent current and reducing power consumption
Active Publication Date: 2009-12-23
CHERY AUTOMOBILE CO LTD
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Problems solved by technology
The large increase in electrical components and control units has led to an increase in the load power of the vehicle, increasing the demand for electric energy; if the use of electric energy cannot be well managed and controlled, it may be due to the insufficient power supply of the generator, resulting in The battery supplies power to the outside world. If the battery discharge time is too long, the battery power will be insufficient, which will affect the normal starting and safe driving of the vehicle, and even affect the service life of the battery.
The large increase in electrical components and control units also increases the difficulty of static current control. If the static current of the vehicle cannot be well controlled, the parking time of the vehicle will be affected, and even the regulatory requirements of some markets cannot be met.
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[0012] The scheme of the present invention will be described in further detail below with reference to the accompanying drawings.
[0013] In order to optimize the electrical balance of the vehicle, control the quiescent current of the vehicle, and optimize the charging and discharging state of the battery, we adopt the following three measures:
[0014] Measure 1. Optimize the electrical balance of the vehicle
[0015] Such as figure 1 As shown, in the patent of the present invention, we divide all the loads of the whole vehicle into load types with different priorities according to the function of the load and the electrical principle of the whole vehicle. For the convenience of explanation here, we name the loads of the whole vehicle as load 1, load 2, load 3, load 4, and load 5 according to the priority from bottom to high. It is divided into several early warning levels. Here we take early warning 1, early warning 2, and early warning 3 as examples to illustrate our des...
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The invention relates to an automobile power supply management system. Firstly, by monitoring the state of the storage battery, the application state of an electrical apparatus used in an entire automobile is controlled, simultaneously the generation power and the output power of a generator is controlled, and the state information of the storage battery is provided to a driver, thereofore maximally optimizing the electric balance of the entire automobile; besides, the static current of the entire automobile is controlled, and the consumption of the electric quantity of the storage battery caused by the static current is reduced, ensuring the time for normally starting after the automobile stops, as well as optimizing the charging and discharging state of the storage battery and prolonging the service life of the storage battery.
Description
technical field [0001] The invention relates to a power management system, in particular to an automobile power management system. Background technique [0002] At present, automotive electronics technology has developed to a new stage of control system integration and information sharing. The large increase in electrical components and control units has led to an increase in the load power of the vehicle, increasing the demand for electric energy; if the use of electric energy cannot be well managed and controlled, it may be due to the insufficient power supply of the generator, resulting in The battery supplies power to the outside world. If the battery discharge time is too long, the battery power will be insufficient, which will affect the normal starting and safe driving of the vehicle, and even affect the service life of the battery. The large increase in electrical components and control units also increases the difficulty of static current control. If the static cur...
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IPC IPC(8): H01M10/42H02J7/00
CPCY02E60/10
Inventor 杨长富程琳董明刘慧军
Owner CHERY AUTOMOBILE CO LTD