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A control method for a vehicle intelligent power management system

A technology of intelligent power supply and management system, applied in circuits or fluid pipelines, efficient vehicle charging, vehicle components, etc., can solve problems such as long debugging time, large power consumption, and increased battery capacity, and reduce the cost of after-sales service. frequency, reduce after-sales cost and prolong life

Active Publication Date: 2019-01-22
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The functions of electrical appliances are becoming more and more abundant, the debugging time is getting longer and longer, and the power consumption is getting bigger and bigger, which will inevitably cause the battery to lose power.
It not only affects the life of the battery itself, but also causes complaints from end users about starting difficulties due to battery loss. However, considering the weight and cost of lead-acid batteries, it is impossible to increase the battery capacity indefinitely.

Method used

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  • A control method for a vehicle intelligent power management system
  • A control method for a vehicle intelligent power management system

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0035] Example 1 AC air conditioner controller

[0036] Receive PMS_level==0x0, then the air volume of the controller blower can be adjusted to the maximum;

[0037] If PMS_level==0x1 is received, the air volume of the control blower is allowed to be adjusted to a maximum of 75%;

[0038] If PMS_level==0x2 is received, the blower air volume is allowed to be adjusted to a maximum of 50%;

[0039] If PMS_level==0x3 is received, the blower is not allowed to be turned on.

example 2

[0040] Example 2 DVD host controller

[0041] If LowPowerWarning==0x0 is received, the display interface will not prompt;

[0042] Received LowPowerWarning==0x1, prompting "battery power is low, some functions will be limited";

[0043] Received LowPowerWarning==0x2, prompting "the battery power is extremely low, please start the engine to use"

[0044] Received LowPowerWarning==0x3, prompting "The battery will be exhausted, please charge it"

[0045] Attached below figure 2 The function logic realization of the present invention is further elaborated

[0046] Step 1: The battery sensor acquisition loop collects battery voltage, current, and temperature, and then converts them into digital signals through sensor CPU processing and analysis, and converts them into LIN bus signals;

[0047] Step 2: The LIN transceiver chip in the power management controller receives the U, I, T, SOC and other signals sent by the battery sensor, and the CPU of the power management controller...

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Abstract

The invention relates to an intelligent power management system. Under the condition that an engine of a whole vehicle is not started, the aging state, the electric quantity state, the voltage state and the current state of a storage battery are recorded in real time through a storage battery sensor and sent to a power management controller, and the states of the storage battery are defined into four types of power management level signals (PMS_level) and low battery electric quantity signals (Low Power Warning) according to an algorithm of the battery management controller; then the four types of the power management level signals and the low battery electric quantity signals are sent to load controllers such as an air conditioner controller, a DVD controller and a lamplight controller through a CAN network; and all the load controllers conduct corresponding load management according to the received level signals, the state of the storage battery is monitored in real time, and therefore a user is reminded of the condition of the electric quantity of the storage battery. By the adoption of the intelligent power management system, power use classified management of loads of the whole vehicle is achieved, and the purposes of reducing the electric quantity consumption of the storage battery and prolonging the service life of the storage battery are achieved.

Description

technical field [0001] The invention belongs to the field of automobile electrical appliances, and in particular relates to a control method of a vehicle intelligent power management system. Background technique [0002] At present, the configuration of automobile electrical appliances is becoming more and more abundant, and the power of electrical appliances is increasing. Such as: air-conditioning system for the third row of 7-seater vehicles, interior lighting system (ambient lighting, ceiling lighting, door lighting, glove box lighting, cosmetic lighting), PTC heating system, audio power amplifier, etc. Existing vehicles are powered by batteries when the whole vehicle is not starting the engine, the whole factory is debugging, and the user 4S shop is testing the vehicle. The functions of electrical appliances are becoming more and more abundant, the debugging time is getting longer and longer, and the power consumption is increasing, which will inevitably lead to the ph...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60R16/023B60R16/03
CPCB60R16/0238B60R16/03Y02T10/92
Inventor 游洪毅吴存学干能强钟令余小勇
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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