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Control method for multi-power source powertrain for vehicle

A technology of powertrain and control method, applied in the field of vehicle transmission control system, can solve the problem of inapplicability of multi-power source powertrain and the like

Active Publication Date: 2018-06-15
安徽易佳斯动力科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the above-mentioned current powertrain control method is not suitable for the new multi-power source powertrain, the present invention proposes a control method for the multi-power source powertrain of the vehicle

Method used

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  • Control method for multi-power source powertrain for vehicle
  • Control method for multi-power source powertrain for vehicle
  • Control method for multi-power source powertrain for vehicle

Examples

Experimental program
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Effect test

Embodiment 1

[0027] Such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 and Figure 6 As shown, a control method for a multi-power source powertrain of a vehicle, the multi-power source of the powertrain is an engine and two drive motors, and the working conditions of the powertrain include pure electric working conditions , hybrid working conditions, pure fuel working conditions, charging working conditions and range-extending working conditions; a powertrain controller is provided, and the powertrain controller stores information obtained through a large number of tests and calculations for vehicles under all road conditions. The best working condition diagram, the working mode diagram under each working condition, the optimal gear diagram under each working mode, the optimal power distribution diagram under each working gear, the control program of each power source under each power distribution ; When the electric vehicle is running, the powertrain controller collects ...

Embodiment 2

[0042] Such as Figure 7 As shown, the multi-power source of the power assembly in Embodiment 2 is two driving motors, that is, the engine is canceled, and the multi-power source power assembly becomes a pure electric power assembly composed of two driving motors, and the multi-power The working condition of the source powertrain has also become only one pure electric working condition, and the electric powertrain controller of the multi-power source powertrain does not need to select the working condition, that is, the control method of the multi-power source powertrain Real-time optimal control of multi-power source powertrain can be accomplished only by four-level control.

[0043] In other embodiments, if the number of drive motors in the multi-power source powertrain is reduced to one, the multi-power source powertrain control method in Embodiment 1 only needs to change the number of drive motors to one and update the powertrain The best working condition diagram stored ...

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Abstract

The invention discloses a control method of a multi-power source power assembly for a vehicle. The power requirement of the whole vehicle is decomposed into five levels of control such as working condition, mode, gear, power distribution and power source. Firstly, the vehicle operating data such as whole vehicle speed, the electrical charge state of a power battery, the state of an accelerator pedal and the time rate of change thereof, the state of a brake pedal and the time rate of change thereof are collected in real time through a power assembly controller when an electric vehicle runs; then, the power assembly controller realizes the power distribution and control for each power source of the power assembly through the five levels in sequence; the first to fourth levels of control in the five levels of control are used for selecting corresponding optimal working points according to stored data respectively, complicated calculation is not needed, the calculated amount of the control method is greatly reduced, the delay phenomenon caused by complicated mathematical formula calculation is eliminated, the requirement of a hardware system is greatly reduced, the cost of the hardware system is reduced, and the energy utilization rate of the whole vehicle is greatly improved.

Description

technical field [0001] The invention relates to the field of vehicle transmission control systems, in particular to a control method for a multi-power source power assembly of a vehicle. Background technique [0002] In the powertrain of a pure electric vehicle, since the motor (hub motor) itself has speed regulation performance, a single motor and a reducer are usually used to form an electric powertrain. This structure can only satisfy electric vehicles running on good roads. In order to expand the adaptability of electric vehicles, an electric powertrain consisting of a single motor and a multi-speed mechanical transmission has emerged. Due to the inherent power interruption defect of the mechanical transmission, as well as the mass and volume of the driving motor when a single motor is used to drive, there are two motors or one motor and one engine or two motors and one engine that are driven simultaneously through the transmission. This powertrain structure is differe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W10/06B60W10/08B60W20/00B60W20/10
CPCB60W10/06B60W10/08B60W20/40B60W30/182B60W40/09B60W40/105B60W2510/244B60W2540/10B60W2540/12B60W2710/06B60W2710/08Y02T10/62
Inventor 袁一卿涂乐平张寅何祥延伍国强张秋雨刘广辉
Owner 安徽易佳斯动力科技有限公司
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