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System and control method for power source heat dissipation and waste heat utilization of hybrid electric vehicle

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: 2021-09-10
JIANGSU UNIV
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  • 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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  • System and control method for power source heat dissipation and waste heat utilization of hybrid electric vehicle
  • System and control method for power source heat dissipation and waste heat utilization of hybrid electric vehicle
  • System and control method for power source heat dissipation and waste heat utilization of hybrid electric vehicle

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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 and control method of a hybrid electric vehicle. The system simultaneously includes an engine high-temperature cooling circuit, a power battery high-temperature cooling circuit, a power battery low-temperature heating circuit and a thermoelectric power generation device. Through the information fed back by the temperature sensor in the system, the electronic control unit ECU controls the switches of different solenoid valves, so as to realize the switching between different circuits. At the same time, the thermoelectric power generation device added to the system can realize thermoelectric power generation by utilizing the temperature difference of the circulating coolant in different water tanks in the circuit. The system cools the engine and the power battery to ensure that the power battery can be heated and kept in the optimal operating temperature range in a low-temperature environment. The service life of the power battery has also brought into play the advantages of hybrid electric vehicles in energy saving and emission reduction.

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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Patent Type & Authority Patents(China)
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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