Novel dynamic switching method for speed of hybrid electric bus

A hybrid power and vehicle speed technology, applied in the direction of components with teeth, transmission control, belt/chain/gear, etc., can solve problems such as increasing vehicle fuel consumption, increasing fuel injection, affecting vehicle dynamics and ride comfort, etc. Improved ride comfort, reduced fuel consumption, and increased life expectancy

Active Publication Date: 2012-07-11
苏州海格电控股份有限公司
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AI Technical Summary

Problems solved by technology

Pull the engine speed below the idle speed by braking, the engine will increase fuel injection, increase the fuel consumption of the vehicle, and at the same time affect the life of the clutch
[0004] ②When the disengagement vehicle speed is the vehicle speed corresponding to the engine idle speed, the vehicle decelerates from the parallel mode to the series mode, and the clutch disengagement process will be relatively stable. When the automatic clutch is engaged, the engi...

Method used

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  • Novel dynamic switching method for speed of hybrid electric bus
  • Novel dynamic switching method for speed of hybrid electric bus

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Embodiment Construction

[0017] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0018] refer to figure 1 , figure 1 It is a flow chart of a preferred embodiment of the novel dynamic switching method of the vehicle speed of a hybrid electric bus in the present invention.

[0019] A novel dynamic switching method for a vehicle speed of a hybrid electric bus, the main steps of which include: obtaining vehicle acceleration information; obtaining vehicle air-conditioning switch information; obtaining vehicle speed information; determining the switching speed of the vehicle according to the above three information parameters; The switching speed of the vehicle controls the automatic clutch.

[0020] The switching speed of the ve...

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Abstract

The invention discloses a hybrid electric vehicle control strategy, and relates to a novel dynamic switching method for the speed of a hybrid electric bus. The novel dynamic switching method mainly includes the steps: acquiring acceleration information of the bus; acquiring on-off information of an air conditioner of the bus; acquiring speed information of the bus; determining switching speed of the bus according to the three information parameters; and controlling an automatic clutch according to the switching speed of the bus. The novel dynamic switching method for the speed of the hybrid electric bus can be used for not only meeting the requirements of the clutch on connection and separation, but also meeting the requirements of the clutch on connection and separation after idle speed boost of an engine and the air conditioner, so that oil consumption of the bus can be reduced, smoothness of the bus is improved, and the service life of the clutch is prolonged.

Description

technical field [0001] The invention relates to a control strategy of a hybrid electric vehicle, in particular to a novel dynamic switching method of a hybrid electric vehicle speed. Background technique [0002] With the development of domestic new energy vehicles, various hybrid vehicles have emerged one after another, and their structural forms are mainly divided into series, parallel and hybrid. The most common hybrid structures such as figure 1 Shown: when driving at low speed, the automatic clutch disengages, the motor drives the vehicle, and the engine is used for power generation; when the vehicle runs at high speed, the automatic clutch engages, the engine drives the vehicle, and the motor assists. By controlling the engagement and disengagement of the automatic clutch, the vehicle can switch between the series mode and the parallel mode. The disengagement and engagement of the automatic clutch is determined by the vehicle speed, which is the switching speed. Gener...

Claims

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Application Information

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IPC IPC(8): F16H59/02F16H59/36F16H59/48F16H59/50
Inventor 陆中华王奇安晓峰周琦杨昆明尹磊
Owner 苏州海格电控股份有限公司
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