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Hybrid power vehicle retarding method and vehicle

A hybrid vehicle and speed retarding technology, which is applied to hybrid vehicles, motor vehicles, transportation and packaging, etc., can solve problems that affect driving safety, cannot be used for a long time, and cannot be used for a long time. The effect of safety, prolonging the full time and prolonging the usable time

Pending Publication Date: 2021-04-27
ZHENGZHOU YUTONG BUS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a method for slowing down a hybrid vehicle to solve the problem that the regenerative braking of a hybrid vehicle cannot be used for a long time when it is used for the slowing down function of the vehicle; Unable to use the retarding device for a long time, affecting driving safety

Method used

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  • Hybrid power vehicle retarding method and vehicle
  • Hybrid power vehicle retarding method and vehicle
  • Hybrid power vehicle retarding method and vehicle

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Embodiment Construction

[0030] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0031] Method example:

[0032] Such as figure 1 The hybrid vehicle speed retarding system shown in the present invention includes a retarder control lever arranged on the instrument panel, and the retarder control lever communicates with the vehicle controller, and the vehicle controller respectively controls and connects the drive motor, Generator and engine; the generator is electrically connected to the energy storage device of the hybrid vehicle, the energy storage device can be a super capacitor or a power battery, and the energy storage device is electrically connected to the driving motor; the generator is connected to the engine transmission, and the generator adopts an ISG motor, which can It is used to drive the engine to start the engine, and it can also generate electricity when the vehicle is driven by the engine; the engine has exhaust brake f...

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Abstract

The invention relates to a hybrid power vehicle retarding method and a vehicle. The method comprises the steps that judging and executing retarding control according to operation of a driver; controlling a generator to drag an engine, enabling the engine to be in an exhaust braking state, and maintaining the engine to a set rotating speed; calculating the power consumption of the generator at a set rotating speed, and calculating the regenerative braking torque of a driving motor according to the power consumption; and controlling the driving motor to output the regenerative braking torque. The problem that when regenerative braking of the hybrid power vehicle driving motor is used for vehicle retarding, retarding fails due to the fact that the energy storage device is fully charged is solved, meanwhile, equipment is not added, the structure of the vehicle does not need to be changed, and the driving safety of the vehicle during long-time downhill is guaranteed.

Description

technical field [0001] The invention relates to a method for slowing down a hybrid electric vehicle and the vehicle, and belongs to the field of slowing down and braking of vehicles. Background technique [0002] The dual-motor hybrid system is a hybrid system generally composed of a drive motor, a generator, and an engine, which can realize the decoupling of the engine and vehicle speed. [0003] The vehicle slowing function can provide auxiliary speed control when the vehicle goes downhill for a long time, maintain a constant speed while avoiding the use of friction-based mechanical brakes for a long time, prevent the high-temperature braking force of mechanical brakes from attenuating, and increase the driving safety of the vehicle . [0004] At present, the retarding function of commercial vehicles mainly depends on the additional configuration of electric eddy current retarder or hydraulic retarder. Adjust the gear position of the retarder on the slope, and control th...

Claims

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Application Information

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IPC IPC(8): B60W20/00B60W20/14B60W10/06B60W10/08B60W10/198
CPCB60W10/06B60W10/08B60W10/198B60W20/00B60W20/14Y02T10/62
Inventor 沙超夏天星余梦辉苏常军李涛杨学青
Owner ZHENGZHOU YUTONG BUS CO LTD
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