摘要:
A brake squeal control device is proposed in which specific control for reducing brake squeals can be carried out to meet the will of a driver, and squeal control conditions for starting squeal reduction can be set individually to meet the requirements of drivers. Signals from wheel speed sensors, which indicate travel state, a hydraulic pressure sensor in a hydraulic circuit, which indicates the braking state, interior and exterior temperature sensors, which indicate the temperature state, and a manual switch operated by the will of a driver are sent to a control circuit. Conditions when squeals which the driver wishes to reduce or eliminate are produced, are stored in the control circuit, and when certain data are prepared, thereafter, by detecting the conditions at the time of generation, automatic squeal control is carried out.
摘要:
A brake squeal control device is proposed which carries out squeal control by specifying travel state and temperature conditions in which brake noise tends to be produced. The brake squeal control device is adapted to feed detection signals from a sensor group that indicates the travel state of the vehicle from a stepping force sensor or wheel speed sensors, and a sensor group that indicates the temperature state from an engine cooling water temperature sensor, a car compartment temperature sensor, a caliper temperature sensor or an outer air temperature sensor to a control circuit. If conditions corresponding to an nullin-the-coldnull and nullfirst-in-the-morningnull states are detected by computing in the control circuit, a solenoid valve is turned on and off to suppress brake squeals.
摘要:
After cruise control is restored by an accelerating operation, the driver set speed is changed according to the displacement of the accelerator pedal. It becomes possible to reduce the driver set speed due to release of the accelerator pedal, that is, the vehicle can be decelerated by the engine. Even if the cruise control is restored, the cruise control is not conducted and the vehicle can be decelerated by the engine if the driver wants to decelerate the vehicle by the release of the accelerator pedal.
摘要:
A method and an arrangement are suggested for limiting the speed of a vehicle to a limit speed with the arrangement not needing an integral component and nonetheless being precise at steady state. A maximum permissible acceleration proportional to the difference between an actual speed and the limit speed is determined. From the maximum permissible acceleration, a limit value for an output quantity of a drive unit of the vehicle is determined by means of a vehicular dynamic operation equation in dependence upon the running resistance. The magnitude of the limit value for limiting the speed of the vehicle to the limit speed may not be exceeded.
摘要:
A travel following system includes a lower limit vehicle speed setting means and an upper limit vehicle speed setting means for previously setting a lower limit vehicle speed and an upper limit vehicle speed to control the vehicle speed by a vehicle speed control means, and a control start commanding means for instructing the vehicle speed control means to start the vehicle speed control upon operation by the driver. The vehicle speed control means is adapted to discontinue a vehicle speed control at a vehicle speed between the lower limit vehicle speed set by the lower limit vehicle speed setting means and a vehicle speed in a stopped state, thereby permitting a vehicle speed control conducted by the driver, and to carry out the vehicle speed control at a vehicle speed exceeding the lower limit vehicle speed in a state in which an accelerating or decelerating operation is not conducted by the driver. The vehicle speed control means is also adapted to ensure that the vehicle speed control is discontinued when the vehicle speed becomes a level equal to higher than the upper limit vehicle speed, and even if the vehicle speed becomes again lower than the upper limit vehicle speed, the vehicle speed control is suspended until the operation of the control start commanding means is conducted. Thus, a moderate tension is provided to the driver during operation of the travel following system so that braking operation can be easily conducted and starting of the vehicle based on the driver's will can be carried out without switching operation by the driver.
摘要:
A vehicle equipped with an anti-lock brake system (ABS) and with anti-slip regulation (ASR) and having the capability of automatically controlling the distance from a vehicle driving in front whereby various vehicle deceleration devices are actuated automatically if the distance becomes shorter than a preset minimum safe distance. For deceleration of the vehicle if the distance from a vehicle driving in front becomes shorter than the preset minimum safe distance, the ASR function used for braking the drive axles of the vehicle is actuated.
摘要:
The present invention provides start-up assistance for a motor vehicle having braking equipment which, in the stationary state of the mo-or vehicle, automatically or under the control of a vehicle driver summons up braking forces needed for the stationary state. To assist start-up of the motor vehicle through a reduction of the braking forces generated in the stationary state, a start-up request of a vehicle driver is determined when defined conditions, which are to be met for start-up of the motor vehicle, exist in the stationary state. Once a start-up request has been recognized, the operating state of the motor vehicle is checked until an operating state required for start-up exists. Once such an operating state is reached, the braking equipment of the motor vehicle is controlled in such a way that its braking forces generated in the stationary state are reduced to allow start-up of the vehicle.
摘要:
A brake control apparatus includes a vehicle sensor to sense a vehicle condition, and a control unit to start a hill hold control to hold a vehicle in a stop state by a braking force produced by a brake actuator even after an end of the driver's braking operation, in accordance with a hill hold control start adjustment parameter determined from the sensed vehicle condition. The parameter may be a variable indicative of a gradient of a road.
摘要:
The present invention relates to a filter fitted into a flow connection of a controlled brake system. The brake fluid is very viscous at low temperatures. Therefore, great pressure loss is encountered at the filter, adversely affecting the control behavior of the brake system. The present invention discloses bridging the route of the brake fluid flow at low temperatures via the filter at least in part, which is done by means of a temperature-responsively controlled valve.
摘要:
The invention relates to the input of speed limiting values into a speed limiter in a vehicle. The speed limiting value which is to be complied with is set by activating a key (7) on an input device (8) one or more times. That speed limiting value of the predefined speed limiting values which is the next highest in relation to the current speed of the vehicle is selected. If the current speed of the vehicle is higher than the highest predefined speed limiting value, the speed limiter is deactivated or the speed of the vehicle plus a speed difference is accepted as the speed limiting value. In exceptional situations, the speed limiter can be temporarily suspended, it being possible for an exceptional situation to be, in particular, the upward transgression of the predefined speed limiting value or a rapid depression of the gas pedal.