Control method and control device for engine start of hybrid electric vehicle and computer equipment

A hybrid vehicle and engine starting technology, which is applied in the direction of hybrid vehicles, engine motor starting, engine starting, etc., can solve the problems of low energy utilization rate and easy wear of the clutch, so as to improve the efficiency of capacity utilization and shorten the starting path , Improve the effect of economy

Pending Publication Date: 2020-01-07
BYD CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The first aspect of the present application proposes a hybrid vehicle engine startup control method, which

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  • Control method and control device for engine start of hybrid electric vehicle and computer equipment
  • Control method and control device for engine start of hybrid electric vehicle and computer equipment
  • Control method and control device for engine start of hybrid electric vehicle and computer equipment

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Embodiment Construction

[0035] Embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary, and are intended to explain the present application, and should not be construed as limiting the present application.

[0036] The method, device and computer equipment for controlling engine startup of a hybrid electric vehicle according to the embodiments of the present application will be described below with reference to the accompanying drawings.

[0037] At present, there are two main ways to start the engine of HEV vehicles, one is starter start, and the other is DCT anti-drag start, such as figure 1 shown. The starter depends on the starter, which is powered by the low-voltage battery of the vehicle. After the engine speed is increas...

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Abstract

The invention provides a control method and a control device for engine start of a hybrid electric vehicle and computer equipment. The control method comprises the following steps: when determining that an engine start condition is met currently, detecting whether a clutch in the vehicle is in an off-state or not currently; if the clutch is in the off-state currently, judging whether the currentlyallowed discharge power of a power battery in the vehicle is greater than a first threshold value or not; and if the currently allowed discharge power of the power battery is greater than the first threshold value, starting belt drive to start a motor so as to drag the engine to start. In this way, the engine is started quickly, the starting process is simplified, the capacity utilization ratio is improved, wear of the clutch is reduced, and the technical problem of low energy utilization ratio and easy wear of the clutch in the prior art is solved.

Description

technical field [0001] The present application relates to the technical field of vehicle control, and in particular to a hybrid vehicle engine startup control method, device and computer equipment. Background technique [0002] With the development of science and technology, hybrid electric vehicle (Hybrid Electric Vehicle, HEV) technology is becoming more and more mature. Considering various factors such as economy and battery life, hybrid vehicles are more favored by consumers than fuel vehicles and pure electric vehicles. [0003] Among the engine starting methods of HEV vehicles, dual clutch transmission (Dual Clutch Transmission, DCT) anti-drag start is a common way to start the engine. figure 1 It is a structural schematic diagram of the existing HEV vehicle engine starting technical solution. The applicant found that when the engine is started by means of DCT anti-drag start, the energy flow transfer has gone through the process of power battery-drive motor-wheel-cl...

Claims

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Application Information

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IPC IPC(8): B60W10/06B60W10/08B60W10/26B60W20/00F02N11/08
CPCB60W10/06B60W10/08B60W10/26B60W20/00B60W2510/0638B60W2510/083B60W2510/242F02N11/0803Y02T10/62
Inventor 张佼逊张鑫鑫高锦龙谢汉文
Owner BYD CO LTD
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