A starter power generation system for a vehicle auxiliary power unit
An auxiliary power unit, starting and generating technology, applied in vehicle components, circuits or fluid pipelines, transportation and packaging, etc., can solve the problems of low engine service life, high fuel consumption, difficult engine improvement, etc., to achieve simple motor control, improve Work efficiency, the effect of ensuring fuel economy
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[0024] The present invention will be further explained below in conjunction with the accompanying drawings.
[0025] figure 1 A structural diagram of a preferred example of the starter generator system of the present invention is shown, as shown in the figure, including: a permanent magnet motor, a bidirectional converter, a control circuit, an electronic control unit (ECU), a power battery, and collecting motor rotor position signals The resolver, the electrical load, the Hall current sensor that collects the motor armature winding current, and the voltage sensor that collects the DC side voltage. The armature winding of the permanent magnet motor adopts a star connection mode, and the output end of the armature winding is connected to the midpoint of the bridge arm of the bidirectional converter. The power battery is connected to both ends of the DC bus to provide the electric energy required for engine starting and to store electric energy during power generation. The elec...
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