What are the meaning of running brake and parking brake?

The braking system has conventional braking and auxiliary braking, and the conventional braking is composed of service braking and parking braking.
There are many auxiliary systems, such as ABS, EBD. ASR, TCS and so on. We will talk about these next time. This time, we mainly talk about conventional braking, namely service braking and parking braking.

What Is Service Brake

Service braking refers to the process of driving, the use of service braking, that is, foot brake. Easy to slow down and stop in the process of moving forward. It's not just slowing the car down or holding it still.
Service braking function is to make the driving car according to the driver's demand to slow down and stop, according to the need to make the car slow down or stop in the shortest distance. Keep the vehicle at a steady speed downhill.

Service Brake System Composition

Service brake system is mainly composed of brake pedal, brake master pump, vacuum booster, brake tubing, brake sub-pump, brake control mechanism and brake.

Brakes are generally divided into drum and disc brakes.

Disc Brake

Disc brake in addition to the above components, brake disc, brake caliper and brake disc composition

Drum Brake

Drum brake in addition to the list of components, brake drum, brake shoe, brake shoe adjustment device and other components.

What Is Parking Brake

Parking brake, also known as hand brake, the role of parking brake is to give the car a resistance when parking, so that the car does not slip. The parking brake, which is the parking gear in the handbrake or automatic gear, locks the drive shaft or the rear wheels. Parking brake is much less than the driving brake force, just parking in the slope of the car can not slip. Parking brake (hand brake) is only used when the service brake fails. When the car stops, the parking brake will be used to prevent the vehicle sliding and sliding.

Composition Of Parking Brake System

Parking brake system is mainly composed of hand brake handle, hand brake pull line, hand brake switch, hand brake indicator, hand brake shoe (some cars share the rear brake pads, there are separate brake pads).

There are different types of parking brakes, such as the above mechanical mechanism operated by hand or foot. In addition, advanced cars are also gradually using electronic control parking system, commonly known as electronic handbrake.
Electronic hand brake by electronic control of parking brake technology, its working principle and mechanical brake is the same, are through the brake disc and brake pad friction to achieve control of parking brake, but control from the mechanical hand brake pull rod into an electronic button.

Use Of Brakes

In the process of driving, generally use the service brake (foot brake), easy to slow down in the process of moving forward. It's not just holding the car still. Parking brake is only used when the service brake fails. When the car is stationary, it is necessary to use the parking brake (hand brake) to prevent the vehicle from sliding forward and sliding back.
After parking, in addition to the use of parking brake, uphill gear to hang in the low position (to prevent slipping), downhill can be hung into first or second gear, do not step on the accelerator, only by gear brake control downhill speed. (To prevent sliding forward).