Heating system and heating method for hybrid electric vehicle power battery
A technology for hybrid electric vehicles and power batteries, which is applied in the field of heating systems for power batteries of hybrid electric vehicles. It can solve the problems of single heating methods for batteries and cannot meet heating needs, and achieve timely and effective heating.
Active Publication Date: 2017-09-22
CHONGQING CHANGAN AUTOMOBILE CO LTD
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[0004] The purpose of the present invention is to provide a heating system and heating method for a power battery of a hybrid electric vehicle, which uses multiple heat sources for the vehicle body and enters different heating modes in combination with different working conditions, and can solve the problem that the existing battery heating method is single and cannot meet complex working conditions. The question of heating demand in case of
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[0067] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0068] A heating system for a power battery of a hybrid electric vehicle, such as figure 1 As shown, it includes a battery pack BT, an electric heater PTC, and a water pump P1. The water outlet of the battery pack BT is connected to the water inlet of the water pump P1 and a compensation pipeline is also provided. The compensation pipeline is provided with Compensate the water tank WB, the water outlet of the water pump P1 is connected to the water inlet pipeline of the electric heater PTC and the first switch K1 is arranged on the pipeline, the pipe between the water outlet of the electric heater PTC and the water inlet of the battery pack BT The water inlet and outlet of the battery pack BT are provided with a temperature sensor S1 for detecting the water inlet temperature of the battery, the battery pack BT is correspondingly provided with a battery ...
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The invention relates to a heating system, in particular to a heating system for a hybrid electric vehicle power battery. A water cooling system, an electric heater and a car body energy emission system are comprehensively applied in the system, the temperature of the vehicle power battery is controlled, and a preference temperature is provided for normal operation of the power battery, so that the work efficiency of the power battery is promoted, and the service life of the power battery is prolonged. The invention also discloses a heating method for the hybrid electric vehicle power battery. The control logics of the heating method are as follows: the working condition of a vehicle is judged, if the working condition is a plug-in charging condition, heating control is carried out according to a battery plug-in charging heating mode; if the working condition is a pure engine working condition, heating control is carried out according to a pure engine working heating mode; if the working condition is a pure electric working condition, heating control is carried out according to a pure electric working heating mode; and if the working condition is a hybrid power working condition, heating control is carried out according to a hybrid power working heating mode. Through the scheme, the problem that an existing single battery heating manner cannot meet the heating requirement under complex working conditions is solved.
Description
technical field [0001] The invention relates to a power battery of a hybrid electric vehicle, in particular to a heating system and a heating method for a power battery of a hybrid electric vehicle. Background technique [0002] The charge and discharge capacity of the battery is greatly affected by the ambient temperature. In a low temperature environment, the charge and discharge capacity of the battery pack is greatly reduced, and even cannot work normally. For this reason, CN 103457318 A discloses a power battery charging and heating system and heating method of a pure electric vehicle. The charging and heating system includes a vehicle control unit, an on-board charger, a charging pile, a battery management system, a power battery, a DC / DC DC converter, thermal management system, PTC heater and 12V battery used for low-voltage power-on of the charging and heating system; the charging and heating method is: when charging, if the temperature T of the power battery is less...
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Login to View More IPC IPC(8): H01M10/48H01M10/615H01M10/625H01M10/637H01M10/6567
CPCH01M10/486H01M10/615H01M10/625H01M10/637H01M10/6567H01M2220/20Y02E60/10
Inventor 裴文龙严臣树甘国超陈兴富单玉梅周波
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD