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Method for gear information display and gear shift prompt of hybrid electric vehicle

A hybrid electric vehicle, gear information technology, applied to vehicle components, circuits or fluid pipelines, transportation and packaging, etc., can solve problems such as difficulty in gear information collection, affecting sensor life and performance

Active Publication Date: 2010-10-27
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, it is difficult to collect the current gear information, not only because of the limitation of the sensor itself, such as at least two sensors are required, and each sensor needs to collect information of three states, but also because the high dynamics of the shift mechanism will affect the The lifetime and performance of the sensor on the

Method used

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  • Method for gear information display and gear shift prompt of hybrid electric vehicle
  • Method for gear information display and gear shift prompt of hybrid electric vehicle
  • Method for gear information display and gear shift prompt of hybrid electric vehicle

Examples

Experimental program
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Embodiment Construction

[0028] The realization process of the present invention is further described in detail below in conjunction with accompanying drawing:

[0029] see figure 1 , the hybrid vehicle gear information display is realized by the following steps:

[0030] The program starts running;

[0031] Collect neutral gear or reverse gear signal through DI signal;

[0032] Determine whether it is neutral or reverse gear;

[0033] If the current gear is neutral or reverse, the neutral or reverse information will be sent to the DCU via the CAN bus for digital display;

[0034] If the current gear is not neutral or reverse, the clutch signal is collected through the DI signal;

[0035] Determine whether the clutch state is disengaged;

[0036] If the clutch state is disengaged, the gear information is an invalid gear, which is not displayed on the DCU;

[0037] If the clutch state is closed, then by collecting the engine speed signal and the vehicle speed signal, calculate the ratio I between...

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Abstract

The invention provides a method for gear information display and gear shift prompt of a hybrid electric vehicle. The gear information can be obtained through calculation according to the proportional relation of the vehicle speed and the engine speed when no gear sensor is used, and can then be displayed, and the gear shift prompt information can be obtained through calculation of upward or downward gear shifting based on fuel conservation when the vehicle is running within a certain speed range, and can then be displayed. Therefore, the invention can help the driver to learn about the running of the vehicle so that the driver can promptly shift the gear, thereby improving the economical efficiency of the fuel.

Description

technical field [0001] The invention belongs to the technical field of hybrid electric vehicles, and in particular relates to a shift reminder and display method for hybrid electric vehicles. Background technique [0002] In response to the increasingly serious fuel and emission problems of traditional vehicles, people began to develop electromechanical hybrid drive systems. The basic design idea is: when the vehicle is running at a constant speed or the required power is small, use a low-power engine that matches its power to drive the vehicle; and When the vehicle accelerates or climbs a slope, the ISG motor is used as a motor to consume the power of the power battery and generate additional torque to assist the engine to drive the vehicle; when the vehicle decelerates, the ISG motor operates as a generator to generate braking torque. Charge the power battery to reduce the energy loss of the vehicle, improve its energy utilization rate, and finally achieve the purpose of s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R16/027
Inventor 任勇苏岭李宗华张永生严钦山
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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