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Belt-starter generator (BSG) motor control system for micro hybrid vehicle

A BSG motor and control system technology, applied in the direction of motors, electric vehicles, control drives, etc., can solve the problems of low excitation current change rate and slow motor control response, so as to reduce excitation current loss, realize freewheeling, and improve efficiency. Effect

Active Publication Date: 2015-07-22
SHENZHEN HANGSHENG ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] In order to solve the problems of low excitation current change rate and slow motor control response in the BSG motor control system of the existing micro-hybrid electric vehicle when the motor is loaded, the present invention provides a BSG motor control system for the micro-hybrid electric vehicle

Method used

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  • Belt-starter generator (BSG) motor control system for micro hybrid vehicle
  • Belt-starter generator (BSG) motor control system for micro hybrid vehicle
  • Belt-starter generator (BSG) motor control system for micro hybrid vehicle

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Embodiment Construction

[0033] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0034] Such as Figure 4 As shown, the BSG motor control system of the embodiment of the present invention includes a 12V battery power supply, a positive bus 62 drawn from the positive and negative poles of the power supply, a negative bus 61, a three-phase inverter / rectifier circuit 5 connected between the positive and negative bus, and an inverter The three-phase winding 4 of the BSG motor stator connected to the circuit / rectification circuit 5, and the chopper step-down circuit 1 and the BSG motor rotor excitation winding 2 connected in series between the positive and negative bus bars; the chopper step-down circuit 1 includes a power switching device The first MOSFET G1 of the first MOSFET G1, the first freewheeling diode D1 connected in parallel with the first MOSFET G1 and the control first MOSFET G1, the gate of the first MOSFET G1 of t...

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Abstract

The invention provides a belt-starter generator (BSG) motor control system for a micro hybrid vehicle, which comprises positive and negative buses which are led out from the two poles of a power supply, a three-phase inversion / rectification circuit connected between the positive and negative buses, a BSG motor stator three-phase winding connected with the three-phase inversion / rectification circuit, and a buck chopper circuit and a BSG motor rotor exciting winding which are connected between the positive and negative buses in series, wherein a booster circuit is arranged between the power supply and the buck chopper circuit; the input end of the booster circuit is connected with the power supply, and the output end of the booster circuit is connected with the input end of the buck chopper circuit; and the three-phase inversion / rectification circuit, the buck chopper circuit and the booster circuit are connected with a control circuit of a start and stop system of a motor and are controlled by the control circuit. The system improves the quick loading capacity of the BSG motor by increasing the control voltage of the excitation of the BSG motor.

Description

technical field [0001] The invention belongs to the technical field of new energy vehicles, and in particular relates to a control system for a BSG motor of a BSG (Belt-Starter Generator, belt-starter generator) start-stop system. Background technique [0002] At present, there are two main routes for automotive energy-saving and environmental protection technologies: one is to improve traditional vehicles to meet energy-saving and environmental protection requirements; the other is to develop new energy-saving and environmentally friendly vehicles, including Alternative-Fuel Vehicles (AFV) ), Hybrid Electric Vehicles (Hybrid Electric Vehicles, HEV), etc. However, the research and development of new energy-saving and environment-friendly vehicles can only reduce fuel consumption and C02 emissions on a new generation of vehicles, and cannot fundamentally solve the problem of fuel waste in existing vehicles. Because when the vehicle is running on urban roads, its idling time ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P9/30B60L15/02
CPCY02T10/7241Y02T10/642Y02T10/64Y02T10/72
Inventor 陈小江熊本波邱林王冬徐辉
Owner SHENZHEN HANGSHENG ELECTRONICS
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