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A control method and gear shifting device for range-extending vehicle gear shifting

A technology of a shifting device and a control method, applied in the field of vehicle control

Active Publication Date: 2020-09-22
ZHEJIANG GEELY NEW ENERGY COMML VEHICLES CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] An object of the present invention is to provide a control method and gear shifting device for range-extended vehicles to solve the problem of normal operation of range-extended vehicles

Method used

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  • A control method and gear shifting device for range-extending vehicle gear shifting
  • A control method and gear shifting device for range-extending vehicle gear shifting
  • A control method and gear shifting device for range-extending vehicle gear shifting

Examples

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Embodiment Construction

[0042] figure 1 It is a schematic flowchart of a control method for gear shifting of a range-extended vehicle according to an embodiment of the present invention, and is used to switch gears of the vehicle according to the driver's intention, wherein the control method may include:

[0043] S100. Determine that the driver's intention is D gear, R gear or N gear;

[0044] S200. When it is determined that the driver's intention is the D gear, determine whether to make a power request through different power gears of the gear shifting device of the vehicle;

[0045] S300. When determining the power request through different power gears of the shifting device, drive the vehicle to run according to the remaining power of the vehicle's power battery and the power request value corresponding to the different power gears; or

[0046] S400. Drive the vehicle to run according to the power request value of the vehicle controller when it is determined not to request power through differe...

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Abstract

The invention provides a control method and a gear shifting device for gear shifting of an extended-range vehicle and relates to the technical field of control. The control method and the gear shifting device are used for controlling vehicle running according to intent of a driver. The control method includes: determining whether the intent of the driver is gear D, gear R or gear N; when the intent of the driver is the gear D, determining whether to send a power request through different power gears of the gear shifting device of the vehicle; driving the vehicle to run according to residual power quantity of the vehicle and power request values corresponding to the different power gears when the power request for the different power gears of the gear shifting device is sent; or when not tosend the power request for the different power gears of the gear shifting device is determined, driving the vehicle to run according to the power request value of a vehicle control unit. By the control method and the gear shifting device, the problem of normal running of the extended-range vehicle is solved.

Description

technical field [0001] The invention relates to the technical field of vehicle control, in particular to a control method and a gear shifting device for range-extended vehicle gear shifting. Background technique [0002] Generally, the motor characteristics of pure electric vehicles determine that the maximum torque can be output at low speeds, so that the acceleration ability is strong. The fixed speed ratio method of decelerating the motor by the first-stage reducer is directly adopted, unlike traditional fuel vehicles that use physical methods to change speed. If the driver steps on the accelerator, it can reach a very high speed in a few seconds, especially if the driver slams on the accelerator in a wrong state, it will bring greater safety hazards to pedestrians, drivers and passengers. Contents of the invention [0003] An object of the present invention is to provide a control method and a gear shifting device for a range-extended vehicle to solve the problem of no...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L15/20B60L50/62B60L50/15
CPCB60L15/2054B60L50/61Y02T10/62Y02T10/70Y02T10/7072Y02T10/72
Inventor 徐秀华
Owner ZHEJIANG GEELY NEW ENERGY COMML VEHICLES CO LTD
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