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Power source heat dissipation and waste heat utilization system of hybrid electric vehicle and control method

A technology of hybrid electric vehicles and control methods, which is applied in the direction of engine components, combustion engines, machines/engines, etc., can solve problems such as excessive temperature of power batteries and no use of waste heat, etc., to ensure normal working conditions and protect service life Effect

Active Publication Date: 2018-12-11
JIANGSU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The system realizes the functions of automatic water cooling of the engine and automatic heating of the power battery through two circuits, but it does not consider the situation when the temperature of the power battery is too high, nor does it consider keeping the power battery at the optimal working temperature after heating. And did not make full use of the waste heat emitted by the system

Method used

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  • Power source heat dissipation and waste heat utilization system of hybrid electric vehicle and control method
  • Power source heat dissipation and waste heat utilization system of hybrid electric vehicle and control method
  • Power source heat dissipation and waste heat utilization system of hybrid electric vehicle and control method

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Embodiment Construction

[0025] For further understanding of the present invention, now in conjunction with the attached Figure 1-4 The present invention is further described:

[0026] combined with figure 1, a waste heat utilization and cooling system for a hybrid vehicle, comprising an engine body 1 and a power battery 19, the engine body 1 is connected to the water inlet end of a first water pump 3 through a first connecting pipe 2; The water outlet is connected with one end of the second connecting pipe 4; the other end of the second connecting pipe 4 is connected with the water inlet of the first water tank 5, and the first water tank 5 is provided with a first temperature sensor 6, and the first water tank The water outlet of 5 is connected with one end of the third connecting pipe 7, the other end of the third connecting pipe 7 is connected with one end of the first electromagnetic valve 8, and the other two ends of the first electromagnetic valve 8 are connected with the fourth connecting pi...

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Abstract

The invention discloses a power source heat dissipation and waste heat utilization system of a hybrid electric vehicle and a control method. The power source heat dissipation and waste heat utilization system includes a motor high-temperature cooling loop, a power battery high-temperature cooling loop, a power battery low-temperature heating loop and a set of temperature difference power generation devices. Through the feedback information of a temperature sensor in the system, electronic control units (ECU) control switches of different solenoid valves, and thus the switchover of the different loops is realized, and meanwhile the temperature difference power generation devices added to the system can use the temperature differences of circulating cooling liquid in different water tanks inthe loops to realize temperature difference power generation. The power source heat dissipation and waste heat utilization system of the hybrid electric vehicle cools a motor and a power battery, andensures that the power battery can be heated and maintained in the optimum operating temperature range under the low-temperature environment, and meanwhile, by using the function of temperature difference power generation of the system, the normal operating condition of the power battery and the motor is ensured, the service life of the power battery is protected, and the advantages of energy saving and emission reduction of the hybrid electric vehicle is played.

Description

technical field [0001] The invention relates to the technical field of hybrid electric vehicles, in particular to a hybrid electric vehicle power source cooling and waste heat utilization system and control method. Background technique [0002] In a hybrid electric vehicle, the engine and the power battery are two crucial power sources, which have an important impact on the power of the vehicle. Many environmental factors will affect the performance of power batteries, among which temperature has the greatest impact on the performance of power batteries. If the temperature is too low or too high, the discharge efficiency of the power battery will be low, which will affect the working state and service life of the power battery. At this time, the battery should be heated or cooled to make the temperature moderate, so that the battery can be in the best working condition. At the same time, the temperature of the engine will also affect the working state of the engine. The en...

Claims

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Application Information

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IPC IPC(8): F01N5/02H01M10/613H01M10/615H01M10/625H01M10/637H01M10/6556H01M10/6568
CPCF01N5/02H01M10/613H01M10/615H01M10/625H01M10/637H01M10/6556H01M10/6568Y02E60/10Y02T10/12
Inventor 汪少华张弛徐兴张晟余铖铨惠易佳
Owner JIANGSU UNIV
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