US 2025/0018913 A1 · ELECTRONIC PARKING BRAKING SYSTEM AND CONTROL METHOD THEREOF

Abstract

In an electronic parking braking system and a control method thereof, the system includes a transmission apparatus, a main parking braking controller and an auxiliary parking braking controller. The transmission apparatus sends a parking request signal when a parking (P) stage is input. The main parking braking controller determines whether being capable of performing a main parking braking control upon receiving the parking request signal, performs the main parking braking control upon determining that the main parking braking controller can perform the main parking braking control, and sends a failure signal to the transmission apparatus upon determining that the main parking braking controller cannot perform the main parking braking control. When the transmission apparatus receives the failure signal, the auxiliary parking braking controller may perform an auxiliary parking braking control. The auxiliary parking braking controller performs an auxiliary parking braking control based on the parking request signal in an activation state.

Claims20

Dependent claims

An electronic parking braking (EPB) system comprising:

a transmission apparatus configured to send a parking request signal when a parking (P) stage is input;
a main parking braking controller configured to determine whether being capable of performing a main parking braking control upon receiving the parking request signal from the transmission apparatus, perform the main parking braking control upon determining that the main parking braking controller is capable of performing the main parking braking control, and send a failure signal to the transmission apparatus upon determining that the main parking braking controller is not capable of performing the main parking braking control;
and
an auxiliary parking braking controller configured to perform an auxiliary parking braking control based on the parking request signal received from the transmission apparatus in an activation state,
wherein the transmission apparatus is further configured to activate the auxiliary parking braking controller so that the auxiliary parking braking controller performs the auxiliary parking braking control upon receiving the failure signal from the main parking braking controller.

2 more elements

A control method of an electronic parking braking (EPB) system, wherein the electronic parking braking system includes a shift stage button, a vehicle control unit, a main parking braking controller, and an auxiliary parking braking controller, the control method comprising:

sending, by the vehicle control unit, a parking request signal in response that a parking (P) stage is input into the shift stage button;
determining, by the main parking braking controller, whether being capable of performing a main parking braking control upon receiving the parking request signal from the vehicle control unit, and sending, to the vehicle control unit, a failure signal upon determining that the main parking braking controller is not capable of performing the main parking braking control;
activating, by the vehicle control unit, the auxiliary parking braking controller upon receiving the failure signal from the main parking braking controller;
and
performing, by the auxiliary parking braking controller, an auxiliary parking braking control upon receiving the parking request signal from the vehicle control unit in an activation state.

2 more elements

Dependencies are inferred from the claim text.

Electronic parking braking system and control method thereof

Life of this patent

Electronic parking braking system and control method thereof

Life of this patent

Abstract

Claims20