Where is the fuel pump relay located in the Beidou Star?
1 Answers
The fuel pump relay of the Beidou Star is located on the left side of the engine compartment. On the left side, there are the compressor relay, fuel pump relay, main relay, and radiator fan relay. If the fuel pump relay is damaged, the engine will not start. If the headlight relay is damaged, the headlights will not turn on. Working Principle: When a certain voltage or current is applied to both ends of the electromagnetic relay coil, the magnetic flux generated by the coil passes through the magnetic circuit composed of the iron core, yoke, armature, and working air gap. Under the action of the magnetic field, the armature is attracted to the pole face of the iron core, thereby pushing the normally closed contacts to open and the normally open contacts to close. When the voltage or current at both ends of the coil is less than a certain value, and the mechanical reaction force is greater than the electromagnetic attraction force, the armature returns to its initial state, the normally open contacts open, and the normally closed contacts close. An aggregate composed of two parts: The automotive relay can be viewed as an aggregate composed of two parts: the control circuit where the coil operates and the main circuit where the contacts operate. In the control circuit of the relay, there is only a relatively small operating current. This is because the contact capacity of the operating switch is small and cannot be used to directly control loads with high power consumption. The relay contacts are used to control the on/off state. Relay: A relay is both a control switch and a controlled object (actuator). Taking the fuel pump relay as an example, it is the control switch for the fuel pump. However, the coil of the fuel pump relay can only form a circuit through the grounding point in the electronic control unit when the driving transistor in the electronic control unit is turned on.
