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Device and method for controlling range extender system of electric vehicle

A technology of electric vehicles and control methods, which is applied in the direction of electric vehicles, motor vehicles, control drives, etc., can solve the problems of not considering the steady-state problems of range extenders, etc., to increase the steady-state judgment and detection of working conditions, optimize the start-up control logic, The effect of improving the success rate of startup

Active Publication Date: 2016-08-24
BEIJING ELECTRIC VEHICLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the power generation control function of this generator set does not consider the steady-state problem of each working condition of the range extender.

Method used

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  • Device and method for controlling range extender system of electric vehicle
  • Device and method for controlling range extender system of electric vehicle
  • Device and method for controlling range extender system of electric vehicle

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Embodiment Construction

[0020] 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.

[0021] The control method and device of the electric vehicle range extender system according to the embodiment of the present invention will be described below with reference to the accompanying drawings.

[0022] figure 1 It is a flow chart of the control method of the electric vehicle range extender system according to the embodiment of the present invention.

[0023] Such as figure 1 As shown, the control method of the electric vehicle range extender system includes:

[0024] S101, after the range extender system is activat...

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Abstract

The invention discloses a device and a method for controlling a range extender system of an electric vehicle. The method includes: after the range extender system is activated, if a whole vehicle system has no fault, judging whether a halt condition of a range extender is in a steady state or not; if yes, further judging whether the whole vehicle system has a power generation requirement or not; if yes, recognizing the power generation requirement, and respectively subjecting a power generator and an engine to modulo check according to the power generation requirement; if the power generator and the engine pass the module check, setting a target rotation speed of the power generator, and controlling the power generator to rotate at the target rotation speed to drive the engine to start and enable the engine to reach a starting rotation speed; after the engine reaches the starting rotation speed, controlling oil injection of the engine to start the engine. Therefore, safety and high efficiency in control of the range extender system can be guaranteed, and range extender starting success rate can be increased by optimization of start control logics.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a control method and device for a range extender system of an electric vehicle. Background technique [0002] With the development of science and technology, the range extender for electric vehicles has solved the problems of short mileage and troublesome charging of electric vehicles to a certain extent. When the on-board battery is short of power, it can drive the electric vehicle to continue driving and charge the on-board battery without parking, thereby greatly expanding the range of activities of the electric vehicle. [0003] In the related technology, the power generation control function of the generator set is determined by the GCU (Generator Control Unit, power generation controller) at an appropriate time according to the instructions issued by the VMS (Variable Message Sign, clean energy vehicle powertrain controller). Appropriate power generation mode. B...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L11/12B60L15/00B60L50/15
CPCB60L15/00B60L50/61B60L50/15Y02T10/62Y02T10/70Y02T10/7072
Inventor 金硕易迪华秦兴权王金龙崔天祥周金龙李从心
Owner BEIJING ELECTRIC VEHICLE
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