B60T7/107

Vehicle brake system for a motor vehicle and method for controlling the vehicle brake system when the parking brake function is activated

A vehicle brake system, comprising a hydraulically controllable disk brake device, which has an electromechanical actuating device for activating a parking brake function, wherein the vehicle brake system has a hydraulic circuit having a hydraulic pressure source and controllable hydraulic functional elements in order to hydraulically control the disk brake device according to a service brake action of a driver or according to an automatic activation of a driving assistance system, wherein the vehicle brake system further comprises a control device in order to control the electromechanical actuating device according to a parking brake action of the driver or according to an automatic activation of the parking brake function. In order to avoid overload states the control device is designed to control at least one of the hydraulic functional elements in such a way that, before the parking brake function is activated by controlling the electromechanical actuating device, a hydraulic volume currently acting on the disk brake device in order to produce a hydraulic pressure that causes a service brake action can be hydraulically isolated.

Composite cable and composite harness

A composite cable is provided that improves terminal machinability while maintaining bending resistance. The composite cable is provided with: a pair of first electric wires; a twisted-pair wire obtained by twisting together a pair of second electric wires having an outer diameter that is smaller than that of the first electric wires; and a tape member spirally wrapped around an aggregate obtained by twisting the pair of first electric wires together with the twisted-pair wire. The twisting direction of the twisted-pair wire, the twisting direction of the aggregate, and the wrapping direction of the tape member are all the same direction.

Composite cable and composite harness

A composite cable includes a first twisted-pair wire formed by twisting a pair of first electric wires, a second twisted-pair wire formed by twisting a pair of second electric wires, a pair of third electric wires arranged between the first and second twisted-pair wires in a circumferential direction, each third electric wire having a larger outer diameter than the first and second electric wires, and a tape member spirally wound around an assembled article that is formed by twisting the first twisted-pair wire, the second twisted-pair wire and the pair of third electric wires together. The two twisted-pair wires have the same twist direction, the twist direction of the two twisted-pair wires is different from a twist direction of the assembled article, and the twist direction of the assembled article is different from a winding direction of the tape member.

Electric brake device

An electric brake device has at least three control units: a first diagonal wheel control unit that controls a front-left wheel brake mechanism and a rear-right wheel brake mechanism which are positioned diagonally; a second diagonal wheel control unit that controls a front-right wheel brake mechanism and a rear-left wheel brake mechanism which are positioned diagonally; and a front wheel control unit that controls a front-left wheel brake mechanism and a front-right wheel brake mechanism. Each of the brake mechanisms has a friction-receiving member that rotates together with the wheel; and a friction-applying member that moves while being powered by an electric actuator, and obtains the braking force by pressing the friction-applying member against the friction-receiving member.

EPB and WSS connecting system

A two-wire connecting system for linking an Electronic Parking Brake and Wheel Speed Sensor to a vehicle control module utilizing a ternary analogous signal. One or more diodes are implemented in the connecting system to selectively power the Electronic Parking Brake and Wheel Speed Sensor. By halving the number of wires, the connecting system is lighter than traditional 4-wire connecting systems that link an Electronic Parking Brake and Wheel Speed Sensor with a control module.

WORK VEHICLE PROVIDED WITH AN IMPROVED CONTROL SYSTEM
20240309610 · 2024-09-19 ·

A work vehicle is provided with a body and ground engaging means configured to allow motion of the body on ground, and braking means for locking ground engaging means, and an operative element carried by said body and configured to execute a specific working operation. The work vehicle further includes a first and a second joystick configured to respectively control the operation of ground engaging means and operative element based on movement of joystick and first and second input means configured respectively to control the activation/deactivation of parking brake functionality of the work vehicle and the activation/deactivation of hydraulic systems of work vehicle. Furthermore, the work vehicle includes a control system configured to receive second and first control signals derived from first and second input means respectively and each configured to assume a respective activation value and a respective deactivation value and inhibit the operation of the joystick linked to the operation of ground engaging means if both control signals are in activation state.

Setting device, particularly a motor vehicle parking brake

A setting device, particularly a motor vehicle parking brake includes a remotely-operated drive, a hollow shaft, a spindle shaft and an elastic element. The hollow shaft is driven by the remotely-operated drive so that the hollow shaft rotates. The spindle shaft moves relative to the hollow shaft within the hollow shaft due to the rotation of the hollow shaft. The spindle shaft is connected to a brake cable such that the spindle shaft can apply and release the brake as it moves in different directions within the hollow shaft. The elastic element is loaded due to movement of the hollow shaft as the hollow shaft is driven in an attempt to release the brake while the brake cable is blocked.

OPERATING SWITCH AND PARKING BRAKE CONTROL DEVICE
20180244255 · 2018-08-30 ·

An operating switch for commanding actuation of an electric parking brake mechanism includes two input terminals and two output terminals, a pair of two wirings for each input-terminal/output-terminal pair of the two input terminals and the two output terminals, each of the wirings being located between the input terminals and the two output terminals, a first switch element provided for the input terminals or the output terminals, and configured to switch connections to the two wirings, according to a command for the actuation, and a second switch element connected to one wiring of the two wirings that connects the input terminals and the output terminals when the command for the actuation given to the first switch element is set to a mode of non-operation. The second switch element is configured to switch connections to the two output terminals or the two input terminals, according to the command for the actuation.

COMPOSITE CABLE AND COMPOSITE HARNESS

A composite cable is provided that improves terminal machinability while maintaining bending resistance. The composite cable is provided with: a pair of first electric wires; a twisted-pair wire obtained by twisting together a pair of second electric wires having an outer diameter that is smaller than that of the first electric wires; and a tape member spirally wrapped around an aggregate obtained by twisting the pair of first electric wires together with the twisted-pair wire. The twisting direction of the twisted-pair wire, the twisting direction of the aggregate, and the wrapping direction of the tape member are all the same direction.

METHOD FOR CONTROLLING A FORCE REPRESENTATIVE OF A PARKING BRAKING OF A VEHICLE AND SYSTEM THEREOF

A method for controlling a force representative of a parking braking of a vehicle, having the steps of: determining, by a data processing unit, a target value of a force representative of a parking braking of the vehicle to be applied, by a first brake caliper, on a first brake disc on the basis of a value of the gradient of the road on which the vehicle is located; determining, by the data processing unit, a value of a first force contribution representative of a service braking of the vehicle applied by a first hydraulic actuator on the first brake disc; determining, by the data processing unit, a value of a second force contribution representative of the parking braking of the vehicle to be applied, by a second electromechanical actuator, on the first brake disc on the basis of a target value of a force representative of a parking braking of the vehicle which can be applied by the first brake caliper on the first brake disc, and of the determined value of the first force contribution representative of a service braking of the vehicle; operating, by the data processing unit, the second electromechanical actuator to apply the determined value of the second force contribution representative of the parking braking of the vehicle on the first brake disc.