JZ ELECTROMAGNETIC AND DRUM BRAKE

(1) The electric brake is basically similar in structure to the hydraulic brake, and there are two types: disc type and drum type;
(2) The electric brake limiting unit (ECU) receives the signal from the brake track plate and limits the braking of the brake; Receiving the parking brake signal and limiting the parking brake; Receive signals from wheel sensors, identify whether the wheel is locked or skidded, limit the braking force of the wheel, and realize anti-lock and driving anti-skid;
(3) the wheel speed sensor can accurately, reliably and timely obtain the wheel speed; (4) the wire harness transmits energy and electric limit signals to the system;
(5) The first power supply provides energy for the whole electric braking system and can be shared with other systems.
From the structure, we can see that this circuit braking system is superior to other traditional braking limiting systems.
Point:
(1) The whole braking system is simple in structure, which saves the brake oil tank, brake master cylinder and booster device in the traditional braking system, thus reducing the quality of the whole vehicle;
(2) The braking response time is short and the braking performance is improved;
(3) No brake fluid and simple maintenance.
(4) The manufacturing, assembling and testing of the system assembly are simple and quick, and the brake assembly becomes a modular structure; (5) The system is connected by wires, so that the system has good durability;
(6) It is easy to be improved, and various electric limiting functions can be added with a little improvement.
Electric braking is a new thing, and there are still many problems to be solved if it is to be fully popularized:
First of all, the problem of driving energy. It needs more energy to adopt a full-circuit braking limiting system, and a disc brake needs about 1kW of driving energy. At present, the vehicle's 12V power system can't provide such a large amount of energy, so the vehicle power system will adopt high-voltage electricity in the future to increase energy supply.
Secondly, the failure treatment of the restraint system. One of the difficulties faced by the electric braking restraint system is the treatment of braking failure. Because there is no independent active backup braking system, a backup system is needed to ensure the safety of braking, which can ensure the fundamental performance of braking regardless of the failure of ECU components, sensors, braking itself and wiring harness. Thirdly, anti-interference treatment. There are various interference signals in the running process of vehicles, and there are many anti-interference restraint systems to eliminate the influence caused by these interference signals.

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