BSG motor start stop control method and system

A BSG motor, start-stop control technology, applied in the control system, AC motor control, arrangement of multiple synchronous batteries, etc., can solve problems such as sparks and load shocks

Active Publication Date: 2018-07-24
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Application Information

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Problems solved by technology

[0003] The invention provides a start-stop control method and system of a BSG motor, which solves the problem that when the current connection between the BSG motor and the power storage battery is started and stopped, due to

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  • BSG motor start stop control method and system
  • BSG motor start stop control method and system
  • BSG motor start stop control method and system

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Embodiment Construction

[0045] In order to enable those skilled in the art to better understand the solutions of the embodiments of the present invention, the embodiments of the present invention will be further described in detail below in conjunction with the drawings and implementations.

[0046] Aiming at the problem that when the current hybrid vehicle starts and stops, the high-voltage contactor is closed, the instantaneous voltage is too large or sparks are likely to occur. The present invention provides a BSG motor start-stop control method and system to solve the current connection between the BSG motor and the power storage battery. When starting and stopping, due to the voltage difference between the two ends of the contactor, a large current will be formed at the moment of closing to cause impact on the load or generate sparks, which can improve the safety and electrical safety of the vehicle.

[0047] Such as figure 1 As shown, it is a schematic diagram of a start-stop control method of ...

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Abstract

The invention provides a BSG motor start stop control method and system; the method comprises the following steps: a vehicle controller receives a vehicle startup signal, and obtains a terminal voltage of a first battery and a terminal voltage of a BSG motor; if the voltage difference value between the terminal voltage of the first battery and the terminal voltage of the BSG motor is greater thana first set value, the vehicle controller controls a DCDC controller to invert and boost the voltage outputted by a second battery, thus increasing the terminal voltage of the BSG motor, and limitinga terminal current to be smaller than a startup current threshold; if the voltage difference value is smaller than a second set value, the vehicle controller controls a high voltage contactor to close, thus enabling the first battery to power up the BSG motor via the high voltage contactor, wherein the second set value is smaller than the first set value; the vehicle controller sends a motor startup signal to the BSG motor, the BSG motor starts up, and drives the vehicle engine to rotate via a belt. The method and system can improve the vehicle safety.

Description

technical field [0001] The invention relates to the technical field of new energy vehicles, in particular to a start-stop control method and system for a BSG motor of a micro-hybrid vehicle. Background technique [0002] With the increasingly stringent requirements of the country on fuel consumption, in cities, due to the concentration of population and vehicles, the operating conditions of urban vehicles are special, especially for urban buses, where there are many stops, plus Stopping at a red light at a traffic crossing, starting and stopping are very frequent, causing most of the energy generated by the engine to be consumed in the form of friction and heat during braking. And because there is a long-term parking condition, the engine is in an idle state for a long time, causing problems such as low vehicle speed, high fuel consumption, and serious pollution. At present, hybrid electric vehicles can reduce fuel consumption and emissions. It adopts hybrid technology, whi...

Claims

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Application Information

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IPC IPC(8): H02P27/06H02P25/16H02P23/28H02J7/00B60R16/023
CPCB60R16/0231H02J7/0026H02P25/16H02P27/06H02P23/28
Inventor 胡俊勇葛娟娟吕永楼虞卫飞杜成磊朴红花
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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