43results about "ASR control systems" patented technology

The invention relates to a solenoid valve (10) for a hydraulic braking system, comprising: a magnetic assembly; a pole core (11); a guide sleeve (13) joined to the pole core (11); a valve armature (20) running axially movably within the guide sleeve (13), the armature being drivable in opposition to a force of a restoring spring (16) by means of a magnetic force produced by the magnetic assembly,or being drivable by the force of the restoring spring (16), and said armature moving a plunger (30) comprising a closing element (34); and a valve body (15) connected to the guide sleeve (13) and comprising a valve seat (15.1) that is located between at least one first flow opening (15.2) and at least one second flow opening (15.3), the plunger (30) being fixedly connected to the valve armature (20). The invention also relates to a hydraulic braking system comprising a solenoid valve (10) of this type. The valve body (15) has a receiving region (19) which at least partially accommodates a guide assembly (40), the valve armature (20) running axially through at least one through-opening (41.1, 44.1) of the guide assembly (40), a mechanical detent device (18) being formed between the guide assembly (40) and the valve armature (20), the detent device releasing the valve armature (20) when the latter is in a de-energised closed position, such that the restoring spring (16) drives the valvearmature (20) and pushes the closing element (34) sealingly into the valve seat (15.1) to produce a sealing function, and said detent device fixes the valve armature (20) in a de-energised open position against the force of the restoring spring (16) in an axial detent position, such that the closing element (34) is raised from the valve seat (15.1).

A vehicle and method are provided. The vehicle includes a system and method for limiting the slip of the wheels. In an embodiment, the system holds the brakes based on an acceleration characteristic measured by a sensor. In another embodiment, the system includes a transmission controller that applies an adjustment to limit an amount of clutch slip as the clutch temperature changes to change in clutch performance to reduce wheel slip. In another embodiment, the system monitors a wheel slip signal from a sensor and compares the wheel slip to a target slip value and controls clutch slip of the transmission clutch to maintain engine output torque during acceleration. In another embodiment, in response to an anticipated vehicle launch event, a drive motor applies a first torque to the input shaft to adjust a gear backlash of the differential unit.

Disclosed is an architecture of an aircraft braking system, including: brakes including electromechanical actuators (1,2); a main control channel (6) and an alternative control channel (7), wherein the main control channel (6) and the alternative control channel (7) comprise electrical components at least partly different and adapted to provide at least partly different main brake control functions and alternative brake control functions, power modules (15, 16), wherein the power modules (15, 16) comprise electrical components at least partly different and adapted to generate supply current (I1, I2) based on the main control signal or an alternative control signal, a supervision unit (8). The supervision unit (8) is adapted to ensure that the main control signal is used in normal operationand that the replacement control signal is used to generate the supply current in the event of a fault.

A brake system has a wheel brake and is operable under a non-failure normal braking mode and a manual push-through mode. The system includes a master cylinder operable by a brake pedal during a manual push-through mode to provide fluid flow at an output for actuating the wheel brake. A first source of pressurized fluid provides fluid pressure for actuating the wheel brake under a normal braking mode. A secondary brake module includes a plunger assembly for generating brake actuating pressure for actuating the wheel brake under the manual push-through mode.

A method of managing the braking force applied on the wheels of a vehicle including hybrid brake actuators is provided. In particular, safety functions, such as ABS and ESP are performed using hybrid actuators.

A damping force control device 10 comprises vary damping shock absorbers, a detector, and a controller. Each of the shock absorbers sets damping coefficient from a minimum value to a maximum value in order to adjust damping force. The detector detects vertical vibration state quantity relating to vibration of the sprung mass. The controller performs an ordinary control for setting the damping coefficient based on the vertical vibration state quantity and according to a predetermined control law suitable for an assumption that all of the wheels touch ground. The controller performs, when at least one of the wheels is an ungrounded wheel which does not touch the ground and each of the other wheels is a grounded wheel which touches the ground, a specific control for setting the damping coefficient of the shock absorber corresponding to the grounded wheel to a first specific value greater than the minimum value.

A system includes a plurality of wheels, a braking system, and one or more sensors. The plurality of wheels includes a guardian wheel and at least one non-guardian wheel and is disposed on a wheeled vehicle. The braking system is operatively connected to the guardian and non-guardian wheels and applies a first braking force to the at least one non-guardian wheel and a second braking force to the guardian wheel. The second braking force increases a slide risk of the guardian wheel beyond a slide risk of the at least one non-guardian wheel. One or more sensors disposed within the wheeled vehicle detect sliding of the guardian wheel allowing a corrective action to be taken to prevent sliding of the at least one non-guardian wheel.

An electric brake system and a method for controlling the same are disclosed. The electric brake system includes a hydraulic control device, a sensing unit, and a controller. The hydraulic control device generates hydraulic pressure using a piston operated by an electric signal generated in response to a displacement of a brake pedal. The sensing unit detects driver's braking intention. When an electronic stability control (ESC) of a vehicle operates, the controller calculates a change amount of stroke of the piston needed to output brake pressure corresponding to the driver's braking intention, and acquires the calculated stroke change amount so as to boost pressure of each wheel at a predetermined slope.

A brake system for an articulated vehicle is disclosed. The brake system includes a brake assembly coupled to a traction device, the brake assembly being configured to apply a brake-assembly pressure based on one of a hydro-mechanical pressure signal and an electro-mechanical pressure signal. A blocking valve is configured to block the hydro-mechanical pressure signal when closed. A brake controller, is configured to transmit an isolation signal configured to close the blocking valve and transmit an ABS control signal that is based on a commanded ABS brake pressure.