A control system for a vehicle includes a controller. The controller is configured to open traction battery contactors based on a potential between high-voltage cables and a chassis continuously exceeding an amplitude threshold for at least a predefined duration of time. The controller is further configured to selectively open the contactors based on data derived from the potential for periods that are each defined by the potential exceeding and then falling below the amplitude threshold without exceeding the predefined duration of time.

The invention has a purpose of improving applicability of a controller and a control method to a vehicle, the controller and the control method executing brake control in which primary information is selectively supplemented by secondary information that is information on an assumed state related to connection and disconnection of a clutch. A determination section 5A1 and a brake control section 5A4 are provided, the determination section 5A1 determining whether an actual state related to the connection and the disconnection of the clutch matches the assumed state in accordance with a relationship between the secondary information and travel state information indicative of a travel state of the vehicle, and the brake control section 5A4 executing the brake control by using the primary information but not the secondary information in the case where the determination section 5A1 determines that the actual state does not match the assumed state.

A vehicle brake system device is provided. The vehicle brake system device includes having a signal input apparatus for inputting request signals from a driver of the vehicle which includes a sensor device which gradually detects a degree of operation of a driver-operated operating element between a position which represents non-operation and a position which represents maximum operation, and generates an operating signal which represents this degree of operation. The signal input apparatus also includes an evaluation electronics system into which the sensor device operating signal is introduced for evaluation purposes. In a switched-off state of a vehicle ignition system the sensor device and/or the evaluation electronics system cyclically assume either a standby mode with reduced electrical energy consumption from an electrical energy source in comparison to an operating mode which prevails in the switched-on state of the vehicle ignition system, the reduced energy consumption is an energy consumption level insufficient to ensure operation of the sensor device and/or the evaluation electronics system for detecting and evaluating operation of the operating element as intended, or assume an energy-saving operating mode which ensures operation of the sensor device and/or of the evaluation electronics system to detect and evaluate operation of the operating element.

A method for operating a vehicle-control-system, including: a) controlling, by a drive-control-system (DCS), a drive motor (DM) driving at least one driven-axle (HA) having first/second drive-wheels (DW), b) driving, via the DM, a differential-gear, between first/second DWs, c) controlling, by a brake-control-system (BCS), a brake-device (BD) having first/second brake-actuators (BA) for first/second DWs, d) providing a steering-brake-function (SBF), with which steering is provided by selectively controlling the first/second BAs of the HA, e) guiding, via a traction-control-system (ASR), an inadmissible drive-slip (DS) at the first/second DWs of the HA to a permissible DS by engaging: e1) in the drive-control of the DM, wherein the DM's drive-power is reduced, and/or by e2) in the BCS of the BD, wherein a DW having inadmissibly great DS, is selectively braked by the first/second DWs; f) dispensing with engagement in the BCS of the ASR BD, when the SBF/ASR is active/activated at the HA.

The present specification relates to a system and a method for preventing overheating of an axle in a construction equipment. A system for preventing overheating of an axle in a construction equipment is mounted in the construction equipment and transmits driving power of an engine to a wheel, and the system includes: a brake pedal; a brake sensor which detects displacement of the brake pedal when the brake pedal is manipulated by an operator; an exhaust brake which is mounted in the engine and operates and controls an opening degree of an exhaust gas discharge passageway of the engine; and a control unit which adjusts the opening degree of the exhaust gas discharge passageway by controlling the exhaust brake corresponding to the displacement of the brake pedal when manipulation of the brake pedal is detected by the brake sensor.

A method for controlling a hydraulic volume in a system comprising a power brake and a driving dynamics control. The system is configured to hydraulically couple the power brake to the driving dynamics control. The method includes: providing a signal to build up a first dynamic pressure for the driving dynamics control; generating a first control signal by means of the driving dynamics control, and providing the first control signal to the power brake in order to provide the hydraulic volume at the hydraulic coupling; generating a second hydraulic pressure by means of the power brake in order to provide the hydraulic volume at the hydraulic coupling; providing the hydraulic volume at the second hydraulic pressure at the hydraulic coupling by means of the power brake; and building up the first hydraulic pressure in the driving dynamics control by means of the provided hydraulic volume.

A vehicular breaking force control system includes: a plurality of actuators capable of generating a braking force for a vehicle; a coasting state detection unit configured to detect that a coasting state has been established; a target braking force calculation unit configured to calculate a target braking force on the basis of a state of the vehicle when the coasting state detection unit detects that the coasting state has been established; and a braking force distribution control unit configured to determine a distribution braking force that is a braking force to be caused to be generated by each actuator, such that the distribution braking force is equal to or less than a braking force generable by the actuator and a sum of the distribution braking forces is equal to the target braking force, and to perform control of causing each actuator to generate the distribution braking force.

A braking system includes a drive system having a traction motor coupled in driving relationship to a wheel of a vehicle, a braking device configured to brake the vehicle, and a control unit. The motor is configured to provide both motive power for the vehicle in a propel mode of operation and retarding effort to brake the vehicle. The control unit is configured to determine a total retarding effort required to brake the vehicle in a braking mode of operation, and an amount of traction motor retarding effort available from the traction motor. The control unit is further configured to control the traction motor and the braking device so that at least one of the traction motor and the braking device brake the vehicle in the braking mode of operation.

A brake system may include an actuating device, in particular a brake pedal; a first piston-cylinder unit having two pistons subjecting the brake circuits to a pressure medium via a valve device, wherein one of the pistons can be actuated by the actuation device; a second piston-cylinder unit having an electric motor drive, a transmission at least one piston to supply at least one of the brake circuits with a pressure medium via a valve device; and a motor pump unit with a valve device to supply the brake circuits with a pressure medium. The brake system may also include a hydraulic travel simulator with a pressure or working chamber which is connected to the first piston-cylinder unit.

A brake system may include an actuation device, in particular a brake pedal, a first piston-cylinder unit with two pistons, in particular an auxiliary piston and a second piston, in order to supply a pressure medium to brake circuits via a valve device. One of the pistons, in particular the auxiliary piston, can be actuated by means of the actuation device. The brake system may further include a second piston-cylinder unit with an electric motor-powered drive, a transmission, and at least one piston to supply a pressure medium to at least one of the brake circuits via a valve device and a motor-pump unit with a valve device to supply a pressure medium to the brake circuits. According to one aspect, a hydraulic travel simulator is connected to a pressure or working chamber of the first piston-cylinder unit.