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Vehicle, hybrid power system and power supply unit thereof

A technology of hybrid power system and power supply unit, applied in vehicle energy storage, vehicle components, electric vehicle charging technology, etc., can solve problems such as unstable control, and achieve the effects of improving utilization, stable control, and flexible control

Pending Publication Date: 2019-07-16
ZHENGZHOU YUTONG BUS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The object of the present invention is to provide a vehicle, a hybrid power system and its power supply unit to solve the problem of unstable control caused by the hybrid power system in the prior art

Method used

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  • Vehicle, hybrid power system and power supply unit thereof
  • Vehicle, hybrid power system and power supply unit thereof
  • Vehicle, hybrid power system and power supply unit thereof

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Embodiment Construction

[0033] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0034] The invention provides a vehicle, which is a hybrid vehicle. The power supply unit of the hybrid vehicle includes a fuel cell module and a power cell module, and the fuel cell module may be a hydrogen fuel cell. The hybrid electric vehicle can control the fuel cell module or the power battery module to supply power to the load according to the remaining fuel condition of the fuel cell and the remaining state of charge of the power battery, or both to supply power to the load at the same time.

[0035] The hybrid system of the hybrid vehicle such as figure 2 shown.

[0036] The fuel cell module is connected to the DC bus through the DC / DC converter, and the DC bus is connected to the drive motor through the control of the motor controller. ...

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Abstract

The invention provides a vehicle, a hybrid power system and a power supply unit thereof.The power supply unit of the hybrid power system comprises a fuel cell module and a power battery module, the fuel cell module is connected with a motor controller through a DC / DC converter; the fuel cell module is connected with the two ends of theDC / DC converter through a first switch module anda second switch module correspondingly.According to the power supply unit of the hybrid power system, the output voltage of the power battery module can be compared with the voltage set at the input end of the DC / DC converter to control the closing / opening of the first switch module and the second switch module , the stability of the system andthe multiplexing of the DC / DC converter are realized, improve the efficiency of a fuel cell power system and the utilization rate of the DC / DC converter are increased, the cost is lowered, and application and promotion of a fuel cell hybrid power system vehicle are facilitated.

Description

technical field [0001] The invention belongs to the technical field of fuel cell vehicles, and in particular relates to a vehicle, a hybrid power system and a power supply unit thereof. Background technique [0002] In recent years, the problem of environmental pollution has become increasingly serious. In order to cope with the global energy shortage and environmental pollution and other issues, the vigorous development of energy-based vehicles has been advocated, and more and more people have turned their attention to zero-emission fuel cell vehicles. [0003] The power system of fuel cell vehicles is the main symbol that distinguishes fuel cell vehicles from other types of vehicles (including internal combustion engine vehicles, battery electric vehicles and oil-electric hybrid vehicles). Under normal circumstances, the dynamic characteristics of the fuel cell are difficult to meet the frequent changes in vehicle load, so the fuel cell is not the only power source of the...

Claims

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Application Information

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IPC IPC(8): B60L50/75B60L53/20B60L1/00
CPCB60L1/00B60L2210/14B60L53/20B60L58/40Y02T10/72Y02T90/40Y02T10/70Y02T90/14Y02T10/7072
Inventor 李玉鹏刘军瑞陈勇刚王宗田廖建华
Owner ZHENGZHOU YUTONG BUS CO LTD
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