Electromagnetic valve constant current control method and device and vehicle

The invention provides an electromagnetic valve constant current control method and device and a vehicle, and aims to solve the problem that current control of an electromagnetic valve in the prior art cannot have high jumping speed and high control precision at the same time. The electromagnetic va...

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Bibliographische Detailangaben
Hauptverfasser: SHU ZHICHENG, YANG CAN, SONG MINGKUN, WU GUANGXUN, LU DAPENG
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention provides an electromagnetic valve constant current control method and device and a vehicle, and aims to solve the problem that current control of an electromagnetic valve in the prior art cannot have high jumping speed and high control precision at the same time. The electromagnetic valve constant current control method comprises the steps that when the obtained actual current and target current of an electromagnetic valve meet a first preset follow current condition, a rapid follow current path enabling the actual current of the electromagnetic valve to rapidly drop is controlled to be formed in an electromagnetic valve control circuit; when the obtained actual current of the electromagnetic valve and the target current meet a second preset follow current condition, an electromagnetic valve driving path for driving the electromagnetic valve to work and a low-speed follow current path for slowly reducing the current of the electromagnetic valve are controlled to be alternately formed in the elec