An air exhausting method of a vehicle brake system is provided. The air exhausting method of the vehicle brake system includes: a first step of actuating a slave cylinder on a pressurization side in a state where a switching valve communicates the slave cylinder with a brake fluid pressure control device, so that air retained in a passage section from the slave cylinder to the brake fluid pressure control device is exhausted from an air exhausting hole; a second step of actuating the slave cylinder on a depressurization side after the first step in a state where the air exhausting hole is closed, so that air retained in a bypass passage moves toward the passage section; and performing the first step again after the second step, so that air moved from the bypass passage to the passage section is exhausted from the air exhausting hole.

An oil supply unit includes a reservoir connected to an outlet tube. A base has a recessed area defined in the top thereof, and a tubular portion extends from the bottom of the base. The recessed area has a passage which communicates with the tubular portion. The outlet tube extends through the passage and the tubular portion. A securing unit extends through the base and located corresponding to the tubular portion. The securing unit is movable relative to the outlet tube. A board is connected to the base and has a pass hole through which the outlet tube extends. Two springs are biased between one end of the board and one of inside walls of the recessed area. An object is clamped between the base and the securing unit such that the oil supply unit is stably and securely supply oil to a vehicle.

It is an object of the invention to provide a brake device capable of detecting a failure in each of components, by which booster control is performed, at an early stage even during vehicle running. The brake device is configured to discharge brake fluid into a communicating fluid path that connects a fluid path of a primary system and a fluid path of a secondary system, and to control a first communicating valve for restricting a flow of brake fluid from the communicating fluid path to the fluid path of the primary system and a second communicating valve for restricting a flow of brake fluid from the communicating fluid path to the fluid path of the secondary system in respective valve-closing directions, so as to check at least a state of the pump.

An air exhausting method of a vehicle brake system is provided. The air exhausting method of the vehicle brake system includes: a first step of actuating a slave cylinder on a pressurization side in a state where a switching valve communicates the slave cylinder with a brake fluid pressure control device, so that air retained in a passage section from the slave cylinder to the brake fluid pressure control device is exhausted from an air exhausting hole; a second step of actuating the slave cylinder on a depressurization side after the first step in a state where the air exhausting hole is closed, so that air retained in a bypass passage moves toward the passage section; and performing the first step again after the second step, so that air moved from the bypass passage to the passage section is exhausted from the air exhausting hole.

A mobile device may authorize with a paired telematics control unit of a vehicle to ensure the vehicle is in a remote service mode; send a command request to the telematics control unit requesting an operation to be automatically performed by a vehicle electronic control unit in place of manual input by an assistant; and receive diagnostic data from the vehicle electronic control unit via the telematics control unit. The telematics control unit may query electronic control units of the vehicle to identify whether the vehicle is in a mode in which commands from a remote service application of a mobile device can be processed; indicate the mode to the application; and receive the command request requesting a service operation to be automatically performed by one of the electronic control units.

A method for setting an application pressure of a vehicle brake of a motor vehicle having a commercial vehicle disk brake, wherein, as the brake pressure increases in a first pressure range, the vehicle brake feeds in a brake pad by a brake infeed travel in the direction of the brake disk, crossing a release clearance, with an increase in a friction torque, and, as the brake pressure increases further in a second pressure range, the brake disk is fed in fully and there is a further increase in the friction torque at the vehicle brake. The method steps detect the brake infeed travel as a function of the brake pressure, identify the first pressure range on the basis of the detected brake infeed travel as a function of brake pressure, set an application pressure of the vehicle brake to a pressure within the first pressure range.

An oil filling device is provided, including: a main body, configured to cover an open end portion of an oil pot, including at least one first sliding portion and a channel; a control member, rotatably disposed on the main body; two clamping members, at least one of the two clamping members including a second sliding portion slidably mounted to the at least one first sliding portion; at least one guiding unit, each of the at least one guiding unit including a guiding groove and an assembly portion; at least one positioning member, connected to the assembly portion and slidably disposed within the guiding groove, wherein rotation of the control member operates to control at least one of the two clamping members to move relative to the main body so that the two clamping members relatively approach to or distance away from each other.

A container for exchanging fluids in a vehicle using a pressurized air service or a vacuum service has a tank for holding a new fluid that is used to replace the old fluid that is in the vehicle. The container has a cap at the tank's top end, and an outlet port extends through the cap. A process tube connects to the outlet port at its proximal end, and a float valve assembly with a ball float connects to the process tube's distal end. The float valve assembly's base is positioned at the bottom of the tank when the tank is sealed and is spaced away from the bottom when the tank is unsealed. The base has an entrance port, an exit port, and an internal passageway therebetween, and the ball float moves between an open configuration spaced from the entrance port and a closed configuration covering the entrance port.

A brake fluid reservoir (1) comprising a receptacle (2), adapted to contain brake fluid, said receptacle (2) forming a bottom wall (3) and a perimetric wall (4), wherein the bottom wall (3) and the perimetric wall (4) define an inner compartment (5) for containing the brake fluid, wherein the perimetric wall (4) defines an inlet opening (6) opposite to the bottom wall (3) communicating with the inner compartment (5), and the bottom wall (3) defines an outlet opening (7) communicating with the inner compartment (5) and fluidically connectable to a braking system; a cap (8) configured to close the inlet opening (6); wherein the receptacle (2) defines an auxiliary opening (9), distinct from the inlet opening (6) and the outlet opening (7), communicating with the inner compartment (5); and wherein the reservoir (1) comprises a valve (10) positioned in the auxiliary opening (9), said valve (10) being configured to regulate a flow of brake fluid through the auxiliary opening (9).

A method of operating a vehicle brake system having multiple wheel brakes includes providing a plunger assembly having a plunger and a chamber fluidly connected to at least one of the wheel brakes. An evacuation of at least one of the wheel brakes is performed by moving the plunger relative to the chamber under control of an electronic control unit (ECU) to generate a vacuum from the chamber to the at least one wheel brake. Pressurized brake fluid is supplied from a reservoir to the evacuated wheel brakes by moving the plunger relative to the chamber under control of the ECU once all the wheel brakes are evacuated.