Pure-electric-coach safety start sequential logic control method

A timing control, pure electric technology, applied in the field of vehicles, can solve the problems of inability to protect the safety of pure electric vehicles, low safety protection performance of pure electric vehicles, and hidden dangers of pure electric vehicles

Inactive Publication Date: 2014-02-26
SINOEV TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, pure electric vehicles also have the following safety hazards:
[0004] Since the pure electric vehicle uses a high-voltage drive motor, a high-voltage circuit is installed in the car to ensure the power performance of the drive motor, and the power supply voltage far exceeds the standard safety voltage, and the charging and di

Method used

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  • Pure-electric-coach safety start sequential logic control method
  • Pure-electric-coach safety start sequential logic control method
  • Pure-electric-coach safety start sequential logic control method

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Embodiment Construction

[0031] 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.

[0032] In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components. Those of ordinary skill in the art can understand...

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Abstract

The invention provides a pure-electric-coach safety start sequential logic control method. The method includes when detecting that a key of a pure electric coach is switched from the LOCK gear to the ACC (acceleration) gear, performing a power-on self-test on lower-voltage equipment of the pure electric coach; when detecting that the key is switched from the ACC gear to the ON gear, detecting whether a battery management system and a motor controller of the pure electric coach are in a normal state or not; if yes, starting high-voltage output; judging whether the high-voltage output is normal or not; if yes, allowing high-voltage power to be utilized by a high-voltage power consumption system of the pure electric coach; when detecting that the key is switched from the ON gear to the START gear, detecting whether the pure electric coach meets preset conditions or not; if yes, allowing the motor controller to control a main contactor to be closed to control the pure electric coach to enter an operational standby state; when judging that the gears are switched currently and a brake pedal signal is effective, processing gear switching operation. By the method, the high-voltage output can be safely started during starting of the pure electric coach, and safety of the electric coach, electric equipment and passengers is guaranteed.

Description

technical field [0001] The invention relates to the technical field of vehicles, in particular to a method for controlling logic of a pure electric bus safe starting sequence. Background technique [0002] In the current global shortage of petroleum energy and severe environmental pollution, pure electric vehicles have become the world's leading automobile industry due to their advantages such as energy saving, low environmental pollution, low noise, simple structure, easy control, and easy maintenance. Key development direction. In particular, pure electric buses among pure electric vehicles are an important development direction of public transportation in the future. [0003] However, pure electric vehicles also have the following safety hazards: [0004] Since the pure electric vehicle uses a high-voltage drive motor, a high-voltage circuit is installed in the car to ensure the power performance of the drive motor, and the power supply voltage far exceeds the standard ...

Claims

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Application Information

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IPC IPC(8): B60L15/00B60R16/023
Inventor 李旭荣
Owner SINOEV TECH
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