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Range-extended electric vehicle and engine start control method and system thereof

A technology for engine starting and electric vehicles, applied in electric vehicles, engine-driven traction, control drive, etc., can solve problems such as poor user experience of extended-range electric vehicles, improve driving experience, improve starting smoothness, and ensure The effect of component safety

Active Publication Date: 2018-04-03
BEIJING ELECTRIC VEHICLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the related art, the range-extended electric vehicle considers relatively simple factors when controlling the starting of the engine, and cannot respond according to some demands in the starting process (for example, stop demand, etc.), resulting in poor user experience of the extended-range electric vehicle. good

Method used

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  • Range-extended electric vehicle and engine start control method and system thereof
  • Range-extended electric vehicle and engine start control method and system thereof
  • Range-extended electric vehicle and engine start control method and system thereof

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Embodiment Construction

[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate 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 invention and should not be construed as limiting the present invention.

[0032] The engine start control method and system of the range-extending electric vehicle and the range-extending electric vehicle according to the embodiments of the present invention will be described below with reference to the accompanying drawings.

[0033] Among them, such as figure 1As shown, the engine start control system of an extended-range electric vehicle includes a vehicle control unit VCU, an engine control unit EMS, a generator control unit GCU, a range extender control unit APU, a generator and an engine. Among ...

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Abstract

An engine starting control method for a range extended electric vehicle, and a system for running the method. The control method comprises: when a range extender is in a stopped working condition, an APU acquiring the states of an engine emergency stop command, an engine stop command and an engine starting command; the APU determining whether the engine emergency stop command is not enabled, whether the engine stop command is not enabled, and whether the engine starting command is received; if the engine emergency stop command is not enabled, the engine stop command is not enabled and the engine starting command is received, the APU further determining whether the number of times of starting failure is less than an allowed threshold value of the number of times of starting failure; and if the APU determines that the number of times of starting failure is less than the allowed threshold value of the number of times of starting failure, switching the range extender to a start working condition. According to the engine starting control method, when engine starting control is performed, whether a stop demand or starting failure exists is detected, a timely response to a vehicle control unit is guaranteed, and the safety of parts that may fail is guaranteed.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to an engine start control method and system for an extended-range electric vehicle and an extended-range electric vehicle. Background technique [0002] In the related art, the range-extended electric vehicle considers relatively simple factors when controlling the starting of the engine, and cannot respond according to some demands in the starting process (for example, stop demand, etc.), resulting in poor user experience of the extended-range electric vehicle. good. Contents of the invention [0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. For this reason, an object of the present invention is to propose a kind of engine start-up control method of the range-extended type electric vehicle, this method detects whether there is a shutdown demand or a start-up failure when controlling the engine s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L11/02B60L15/24B60L50/10
CPCB60L15/24B60L50/10B60L2260/44B60K6/20B60L15/00Y02T10/7072Y02T10/72
Inventor 王金龙易迪华金硕崔天祥周金龙
Owner BEIJING ELECTRIC VEHICLE
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