Hybrid electric vehicle and engine start control method of the vehicle

An engine controller and hybrid technology, applied in engine control, engine starting, hybrid vehicles, etc., can solve problems such as poor emission, high fuel consumption of engine injection, and inability of the engine to participate effectively and quickly, so as to achieve high reliability Effect

Active Publication Date: 2018-12-14
WEICHAI POWER CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

In this process, the engine injection fuel consumption is high and the emission is poor.
In addition, the starting speed of the engine driven by the BSG / ISG motor is a certain value, and the reverse engine speed value is not determined according to the actual working conditions, so that the engine cannot effectively and quickly participate in the current working conditions

Method used

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  • Hybrid electric vehicle and engine start control method of the vehicle

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Embodiment Construction

[0029] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0030] According to an embodiment of the present invention, a hybrid electric vehicle is proposed, including an engine, a motor, a hybrid controller HCU, an engine controller, a motor controller, and an information collection unit. The information collection unit includes engine speed sensor, vehicle speed sensor and so on. The information acquisition unit collects various sensor signals and inputs them to the hybrid controller as ...

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Abstract

The invention provides a hybrid electric vehicle and a control method thereof, and is mainly used for start control of an engine. A first rotating speed and a second rotating speed are set and the engine is controlled to inject oil or not to inject oil according to the two rotating speeds, the start control method of the engine in a hybrid power system is optimized, misoperation of a driver is reduced, and the reliability of a BSG (Belt Starter and Generator) / ISG (Integrated Starter and Generator) motor to start the engine is improved.

Description

technical field [0001] The present application relates to a hybrid electric vehicle, in particular to an engine start control strategy for a hybrid system of a hybrid electric vehicle. Background technique [0002] At present, the world's automobile industry is facing two major problems: environmental pollution and lack of oil resources. Therefore, environmental protection and energy saving are an important development direction of automobile technology in the 21st century. At the same time, the emission regulations of various countries are becoming increasingly strict. Hybrid vehicles are a new generation of clean energy vehicles featuring low pollution and low fuel consumption. A hybrid vehicle refers to a vehicle that uses both fuel-driven and electric-driven drives. The advantage of a hybrid vehicle is that when the vehicle starts and stops, it is only driven by the motor, and the engine does not work until it reaches a certain speed. Therefore, the engine can always be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W10/08B60W10/06B60W20/00B60W30/182F02N11/00F02D41/30
CPCB60W10/06B60W10/08B60W20/00B60W30/182B60W2710/06F02D41/30F02N11/00Y02T10/62
Inventor 战东红刘焕东台述鹏孙立鹏张椿
Owner WEICHAI POWER CO LTD
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