A contactor control system having a primary microprocessor, a secondary microprocessor, a high side contactor control circuit, and a low side contactor control circuit is provided. The primary microprocessor sends a first command signal to the secondary microprocessor. The secondary microprocessor sends a command signal to the secondary grounding circuit for outputting a ground level voltage to a logical OR circuit to induce the logical OR circuit to output a ground level voltage to a second end of the contactor coil. The primary microprocessor sends a command signal to the secondary microprocessor, and in response the secondary microprocessor sends a command signal to the secondary pull-in circuit to activate the secondary pull-in circuit for energizing the contactor coil.
Contactor control system
2017-07-11
Patent
Electronic Resource
English
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / G05B Steuer- oder Regelsysteme allgemein , CONTROL OR REGULATING SYSTEMS IN GENERAL / H02G INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES , Verlegen oder Installieren elektrischer Kabel oder Leitungen, Verlegen oder Installieren kombinierter optischer und elektrischer Kabel oder Leitungen |
CONTACTOR CONTROL SYSTEM AND METHOD FOR CONTROLLING A CONTACTOR
European Patent Office | 2020
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