Fuel cell hybrid electric vehicle heat management system and method, vehicle and medium

A technology of hybrid electric vehicles and thermal management systems, applied in electric vehicles, battery/fuel cell control devices, vehicle components, etc., can solve problems such as poor economy, improve economy, avoid low conversion efficiency, and avoid low discharge power Effect

Active Publication Date: 2021-08-13
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, most fuel cell hybrid vehicles use PTC hot air air conditioners to provide warm air for the driver, which is less economical for heating.

Method used

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  • Fuel cell hybrid electric vehicle heat management system and method, vehicle and medium
  • Fuel cell hybrid electric vehicle heat management system and method, vehicle and medium
  • Fuel cell hybrid electric vehicle heat management system and method, vehicle and medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Embodiment 1 of the present invention provides a thermal management system for a fuel cell hybrid electric vehicle. like figure 1 As shown, the fuel cell hybrid electric vehicle thermal management system includes: stack cooling and heating loop, battery cooling and heating loop, heating loop and refrigeration loop.

[0055] The stack cooling and heating circuit includes a radiator 101, a thermostat 103, a stack water pump 104, a stack 105, and a stack temperature sensor 106 connected in sequence. The radiator 101 is provided with a cooling fan 102 for blowing air to the radiator 101. Specifically, the thermostat 103 includes a liquid inlet C, a liquid outlet A, and a liquid outlet B. The liquid outlet A of the thermostat 103 is connected to the inlet of the radiator 101, and the outlet of the radiator 101 is connected to the outlet of the stack water pump 104. Inlet, the liquid outlet B of the thermostat 103 leads a branch to connect to the rear end of the radiator 101...

Embodiment 2

[0067] Based on the above fuel cell hybrid vehicle thermal management system, the present invention also provides a fuel cell hybrid vehicle thermal management method, Figure 4 It is a flow chart of the fuel cell hybrid vehicle thermal management method in the present invention, Figure 4 The meaning of each parameter in is:

[0068] BatTemp: battery temperature;

[0069] FcTemp: stack coolant temperature;

[0070] Th1: battery temperature threshold in warm-up mode;

[0071] Th2: stack temperature threshold in warm-up mode;

[0072] Th3: battery temperature upper limit in warm-up mode;

[0073] Th4: upper limit of stack temperature in warm-up mode;

[0074] like Figure 4 As shown, the fuel cell hybrid vehicle thermal management method includes the following steps:

[0075] Determine whether the air conditioner has a heating request;

[0076] If the air conditioner has no warm air request, and: the battery temperature is lower than the battery temperature threshold va...

Embodiment 3

[0096] Embodiment 3 of the present invention also provides a vehicle. The components of the vehicle may include but not limited to: a vehicle body, one or more processors, a memory, and a bus connecting different system components (including the memory and the processor).

[0097] As a computer-readable storage medium, the memory can be used to store software programs, computer-executable programs and modules, such as program instructions corresponding to the fuel cell hybrid vehicle thermal management method in the embodiment of the present invention. The processor executes various functional applications and data processing of the vehicle by running the software programs, instructions and modules stored in the memory, that is, realizes the above thermal management method for the fuel cell hybrid electric vehicle.

[0098] The memory may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system and an applicat...

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PUM

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Abstract

The invention discloses a fuel cell hybrid electric vehicle heat management system and method, a vehicle and a medium. The system comprises a galvanic pile cooling and heating loop, the galvanic pile cooling and heating loop comprises a radiator, a thermostat, a galvanic pile water pump, a galvanic pile and a galvanic pile temperature sensor which are connected in sequence, and the thermostat can control whether cooling liquid in the loop passes through the radiator; a battery cooling and heating loop which comprises a battery, a battery water pump, a battery temperature sensor and a battery three-way valve which are connected in sequence; the heating loop comprises a hydrogen combustion heater, a warm air core body, a heating loop rear end temperature sensor, a heating three-way valve, a heating water pump, a heat exchanger and a heating loop front end temperature sensor which are connected in sequence; a refrigerating loop which comprises an air conditioner and a cooler which are connected with each other, and the cooler exchanges heat with the battery cooling and heating loop; the electric pile cooling and heating loop and the battery cooling and heating loop are both connected with the heating loop, and the refrigerating loop is connected with the battery cooling and heating loop. The electric pile and the battery can be warmed, and a driver can be warmed.

Description

technical field [0001] The invention relates to the technical field of automobile heat management, in particular to a fuel cell hybrid electric automobile heat management system, method, vehicle and medium. Background technique [0002] There are two power sources for fuel cell hybrid vehicles, that is, fuel cell engine and power battery. Because the conversion efficiency of the fuel cell engine is very low in a low temperature environment, it needs to be warmed up. The discharge power of the power battery is also very low in a low temperature environment, especially when the state of charge of the battery is low, the temperature has a great influence on the discharge capacity of the battery. In addition, most fuel cell hybrid vehicles use PTC hot air air conditioners to provide warm air for the driver, which is less economical for heating. [0003] Therefore, it is urgent to provide a fuel cell hybrid vehicle thermal management system, method, vehicle and medium to solve ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L58/34B60L58/27B60H1/00B60H1/22
CPCB60L58/34B60L58/27B60H1/00278B60H1/2206B60H2001/00307Y02T10/70Y02T90/40
Inventor 尹建坤马艳红
Owner CHINA FIRST AUTOMOBILE
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