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Power distribution management method and device for hybrid vehicle

A hybrid vehicle and power distribution technology, applied in the vehicle field, can solve the problem that the accelerator pedal opening threshold cannot accurately fit the driver, etc.

Active Publication Date: 2021-07-27
GREAT WALL MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention aims to propose a power distribution management method and device for hybrid vehicles to solve the technical problem that the fixed accelerator pedal opening threshold cannot accurately meet the needs of each driver

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  • Power distribution management method and device for hybrid vehicle
  • Power distribution management method and device for hybrid vehicle
  • Power distribution management method and device for hybrid vehicle

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Embodiment Construction

[0042] It should be noted that the features and embodiments in the present invention can be combined with each other in the case of an unable conflict.

[0043] The present invention will be described in detail below with reference to the drawings.

[0044] At present, in the power distribution strategy of hybrid vehicles, it is determined that the engine started accelerator pedal opening degree threshold is currently based on the value of the engine, motor characteristic curve and the engineer's project experience. Since there is a differentiality of the driver's usage, for example, for a radical driver, it will desire to start early, and for the driving stepped driver, it is expected that the engine starts late. Therefore, the fixed accelerator pedal opening degree threshold cannot accurately fit the needs of each driver.

[0045] In addition, when the accelerator pedal opening degree threshold is high, the engine starts late, and there may be a case where the motor will not mee...

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Abstract

The invention relates to the technical field of vehicles, and provides a power distribution management method and device for a hybrid vehicle, and the method comprises the steps that accelerator pedal opening information sent by the hybrid vehicle is received; based on the accelerator pedal opening degree information, a first opening degree change rate when the accelerator pedal opening degree is in the starting interval and the accelerator pedal opening degree is increased and a second opening degree change rate when the accelerator pedal opening degree is in the overtaking interval and the accelerator pedal opening degree is increased are counted respectively, wherein the starting interval corresponds to a first preset range of the opening degree of an accelerator pedal, and the overtaking interval corresponds to a second preset range of the opening degree of the accelerator pedal; a driver characteristic coefficient is calculated based on the first opening degree change rate and the second opening degree change rate; and the driver characteristic coefficient is sent to the hybrid power vehicle. Thus, starting of the engine can better meet the requirements of different drivers.

Description

Technical field [0001] The present invention relates to the field of vehicle technology, and more particularly to a power distribution management method and apparatus for hybrid vehicle. Background technique [0002] There are a variety of power sources in the hybrid vehicle, and thus relates to how to better coordinate a plurality of power sources. [0003] There are two main power sources in the hybrid vehicle: engine and motor. The engine at low speed is hysteresis, and the efficiency is relatively low, and the efficiency is high at high speed. The motor is characterized by a low speed torque, but the torque and efficiency at high speed will drop sharply. Therefore, the power distribution of the current hybrid vehicle is that the accelerator pedal opening degree is less than the accelerator pedal opening degree threshold, the engine does not start, using the motor drives the vehicle; the accelerator pedal opening degree is not less than the accelerator pedal opening degree thr...

Claims

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Application Information

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IPC IPC(8): B60W20/10B60W10/06B60W10/08
CPCB60W20/10B60W10/06B60W10/08B60W2540/106Y02T10/62B60W20/19B60W50/10B60W2540/103B60W2540/10B60W20/15B60W2510/081B60W2510/083F02N11/0803F02N2200/101
Inventor 胡志敏刘宝侯文涛王增利沈哲辉郭贵贤
Owner GREAT WALL MOTOR CO LTD