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Emergency startup device of electric vehicle

  • US 10,093,186 B2
  • Filed: 05/03/2017
  • Issued: 10/09/2018
  • Est. Priority Date: 12/02/2016
  • Status: Active Grant
First Claim
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1. An emergency startup device of an electric vehicle, comprising:

  • a high-voltage power battery;

    a motor driver, driving a power motor;

    a high-voltage control box, comprisingan input port electronically connected to the high-voltage power battery; and

    an output port electronically connected to the motor driver;

    a vehicle controller, electronically connected to the high-voltage control box to turn on or turn off the high-voltage control box;

    wherein when the high-voltage control box is turned on, the high-voltage power battery provides electricity to the motor driver through the high-voltage control box, and the motor driver drives the power motor;

    a low-voltage DC battery;

    a DC-to-DC converter, electronically connected between the low-voltage DC battery and the output port of the high-voltage control box;

    wherein when the high-voltage control box is turned on, the high-voltage power battery further provides the electricity to charge the low-voltage DC battery through the DC-to-DC converter to charge the low voltage DC battery;

    a startup switch, electronically connected between the low-voltage DC battery and the vehicle controller;

    wherein when the startup switch is turned on, the low-voltage DC battery provides electricity to the vehicle controller through the startup switch;

    an emergency starter, comprising;

    a switch module, electronically connected between the high-voltage power battery and the DC-to-DC converter; and

    a switch control module, electronically connected to the switch module to turn on or turn off the switch module;

    wherein when the switch module is turned on, the high-voltage power battery is electrically connected to the DC-to-DC converter through the switch module to charge the low-voltage DC battery through the DC-to-DC converter.

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