Abstract:
An electronically controlled brake apparatus (10) for tractors. The apparatus (10) having:—devices (11, 12, 13a, 13b, 15, C1, C2) for producing and distributing compressed fluid;—a device (14) for braking and steer-by-braking (SBF) the tractor; and—compressed-fluid modulating devices (18, 19, 24, 25) for activating tractor brakes (21, 23, 27, 29). The modulating devices (18, 19, 24, 25) are connected electrically to a brake-control electronic central control unit (CNT). And the apparatus (10) also has a device (DS) for supplying high-pressure fluid to the rear modulating devices (24, 25) and selecting the maximum pressure of the fluid supply to the rear modulating devices (24, 25), depending on the function to be performed.
Abstract:
In a brake controller, a slope climbing vehicle stop detecting means determines when the vehicle is stopped while climbing a slope, and a pedal release detecting means determines that the pedal is released. An assist control unit interpolates a decrement in brake fluid pressure in the master cylinder due to an input piston movement caused by a release of a brake pedal. An assist piston is controlled by an electric motor to restore and maintain the fluid pressure within the master cylinder.
Abstract:
A brake regulation system for motor vehicles is provided with an electronic control unit, by which an automatic parking brake function can be activated in the stationary phase of the motor vehicle and can be deactivated upon reaching a predetermined triggering condition. The control unit can determine in a wheel selective manner the coefficient of friction, or rather the adhesion between the tires and the roadway at the location of the motor vehicle, which is held so as to be stationary by use of the parking brake function. In the presence of different coefficients of friction or adhesion coefficients at the right and left wheel of at least one driven axle, the triggering condition is adapted in the direction of a longer hold of the brake pressure.
Abstract:
An assistance device for uphill movements of an automobile, including a first assistance calculator controlling a parking brake and automatically controlling release thereof when it is activated and when driving torque transmitted by a clutch is higher than a minimum threshold for maintaining the vehicle on a slope, a second assistance calculator controlling the driving brake and automatically controlling and maintaining its activation when it has been activated, when it is determined that the vehicle is immobile and when the clutch torque is lower than the minimum threshold, and automatically controlling the release thereof when it is activated and when the clutch torque is higher than the threshold, and a mechanism determining immobility of the vehicle, estimating the clutch torque, estimating the slope, and calculating a threshold.
Abstract:
Provided are a vehicle controller and a vehicle mounted with the vehicle controller capable of performing a control for realizing an operator's intention to stop or start a vehicle without performing a troublesome driving operation. In a controller 20 mounted to a vehicle and including a vehicle speed sensor 2 detecting a vehicle speed, a solenoid control brake 10 controlled by a solenoid control valve 9, and a brake pedal sensor 2 detecting an operation amount of a brake pedal 1 used to operate a service brake, when the vehicle speed detected by the vehicle speed sensor 2 is not more than a predetermined vehicle speed X km/h indicating a vehicle stop state and a brake ON signal detected by the brake pedal sensor 2 continues for a predetermined time Y or more, a control signal for enabling the solenoid control brake 10 is output to the solenoid control valve 9.
Abstract:
A process for operating the brake arrangement of a vehicle is presented, which comprises an electrically controllable service brake system, which is set to generate brake forces independently of driver actuation, andwhich comprises an electrically controllable parking brake system, which is set to generate brake forces and maintain these forces. So that the parking brake system or its electromechanical actuating unit only needs to cope with relatively small load situations, it is proposed that, when, for certain operating conditions, the parking brake system has to maintain brake forces which are greater than the brake forces it is able to generate itself, the service brake system generates the additionally required brake forces.
Abstract:
An ECU executes a program including the steps of: setting a creep torque reflection ratio; if brake is applied and the vehicle is currently stopped, updating the creep torque reflection ratio to 0; if brake is not applied and despite that the brake fluid's pressure is larger than a hydraulic pressure value, determining that brake hold control is currently exerted, and reducing the creep torque reflection ratio, as based on a map having the brake fluid's pressure as a parameter, to update the creep torque reflection ratio.
Abstract:
A method for controlling the braking system of a motor vehicle in which, in order to prevent the vehicle from rolling away after a stopping action, a first braking force value is established at at least one wheel of the vehicle, independently of the driver, and is held for a predefined limited holding time; a transverse variable characterizing a transverse motion of the vehicle is ascertained; and as a function of the transverse variable, a release of the braking force is accomplished even before the predefined holding time has elapsed.
Abstract:
A method and a device for detecting the initiation of a starting process of a motorcycle are disclosed. The method includes the step of acquiring a throttle valve angle (α), an engine speed (nengine) or both the throttle valve angle (α) and the engine speed (nengine). The method further includes the step of analyzing the throttle valve angle (α), the engine speed (nengine) or both the throttle valve angle (α) and the engine speed (nengine) to detect the initiation of the starting process of the motorcycle. The device includes both a means for acquiring and a means for analyzing the throttle valve angle (α), the engine speed (nengine) or both the throttle valve angle (α) and the engine speed (nengine).