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Vehicle fuel cell operation power control system and method

A fuel cell and operating power technology, which is used in battery/fuel cell control devices, electric vehicles, vehicle energy storage, etc. It can solve the problem of lack of in-depth interaction of vehicle components such as power batteries, and the inability to realize the coordination of vehicle components. , without considering the change of power demand of the whole vehicle, etc., to achieve the effect of reliable design principle, simple structure and prolonging life.

Inactive Publication Date: 2020-09-01
SINO TRUK JINAN POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the past, the control strategy of constant power operation of the fuel cell was usually adopted, which could not meet the changing demands of the discharge power of the vehicle under different working conditions. There would be situations where the power battery was always being charged or the power battery was always being discharged, which would seriously affect the power battery in the long run. life span
[0003] The current fuel cell power control system only uses the strategy of autonomously controlling its operating power through the controller, lacks in-depth interaction with vehicle components such as power batteries, and does not consider the power demand changes of the vehicle, so it cannot be well realized. Collaborative work

Method used

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  • Vehicle fuel cell operation power control system and method
  • Vehicle fuel cell operation power control system and method

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Embodiment 1

[0044] Such as figure 1 As shown, this embodiment provides a vehicle fuel cell operating power control system, a vehicle fuel cell operating power control system, including: a fuel cell management unit, a vehicle controller, a power battery management unit and a motor controller, The power battery management unit, the motor controller and the fuel cell management unit are respectively connected to the vehicle controller;

[0045] After the vehicle is powered on, the vehicle controller collects the fuel cell start signal, monitors the power battery SOC, and decides whether to control the fuel cell to start. The vehicle controller obtains the vehicle speed signal. If the vehicle speed is greater than zero, the vehicle is in the driving state. , otherwise the car is parked. According to the status of the car, do the following:

[0046] When the car is in a parked state, the power battery management unit outputs an SOC signal, and the vehicle controller controls the operating po...

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Abstract

The invention provides a vehicle fuel cell operation power control system and method. The system comprises a fuel cell management unit, a vehicle control unit, a power cell management unit, and a motor controller, wherein the power cell management unit, the motor controller, and the fuel cell management unit are respectively connected with the vehicle control unit. The vehicle controller controlsthe fuel cell to follow the power of the vehicle motor to a certain extent according to the motor bus voltage and the motor bus current; and the SOC is monitored and the operation power of the fuel cell is dynamically adjusted, so that the power cell is prevented from being overcharged and overdischarged, the SOC is maintained in an optimal service life working interval, and the service life of the power cell is prolonged.

Description

technical field [0001] The invention belongs to the technical field of automobile batteries, and in particular relates to a vehicle fuel cell operating power control system and method. Background technique [0002] With the continuous promotion of fuel cell vehicles, the control strategy of fuel cells is also constantly developing and improving. SOC ("state of charge") In the battery industry, SOC refers to the state of charge. Generally, maintaining the SOC of the power battery in the optimal working range (generally in the range of "30-85") can improve the service life of the battery. In the past, the control strategy of constant power operation of the fuel cell was usually adopted, which could not meet the changing demands of the discharge power of the vehicle under different working conditions. There would be situations where the power battery was always being charged or the power battery was always being discharged, which would seriously affect the power battery in the...

Claims

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Application Information

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IPC IPC(8): B60L58/30B60L58/12B60L58/40
CPCB60L58/12B60L58/30B60L58/40Y02T10/70Y02T90/40
Inventor 王坤玉张绍楠毕研坤刘国庆崔红雨
Owner SINO TRUK JINAN POWER
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