Abstract:
It is an object of the present invention to provide a vehicle braking force control device that can cause a brake device to perform braking as envisioned by a driver even in a situation where a large braking force resulting from engine braking is acting. A vehicle braking force control device that is installed in a vehicle and which, at a normal time, performs antilock brake control at a time when the slip ratio of a wheel has become equal to or greater than a predetermined threshold acquires from the engine control unit an accelerator pedal position signal corresponding to an accelerator pedal position, a clutch connection signal corresponding to a state of connection of a clutch, and a power transmission signal corresponding to a state of power transmission of a transmission, and at a time when the vehicle braking force control device has determined that the action of engine braking is large on the basis of the accelerator pedal position signal, the clutch connection signal, and the power transmission signal, the vehicle braking force control device changes the predetermined threshold value to an offset threshold value that makes it harder to perform the antilock brake control than at the normal time.
Abstract:
The antilock brake control device (1) is used in a vehicle including: a motor (3) to drive a wheel; a wheel bearing to transmit a rotation of the motor (3) to the wheel and to rotationally support the wheel; and a friction brake to urge a press member against a brake rotor provided in each wheel, to generate a frictional force to brake the wheel. The antilock brake control device (1) includes slip ratio monitor (21) to monitor a slip ratio of the wheel; and driving torque addition section (22) to add a torque in a driving direction to a torque command value for the motor (3) when the slip ratio monitored by the slip ratio monitor (21) exceeds a target slip ratio. When the torque in the driving direction is added to the torque command value for the motor (3), the friction brake is not operated.
Abstract:
A coasting control device capable of avoiding coasting control during running on low µ roads is provided. A low µ road running recognition unit 4 which recognizes that a vehicle is running on a low µ road and a unit 5 for prohibiting coasting control during low µ road running when the low µ road running recognition unit recognizes that the vehicle is running on a low µ road are provided.
Abstract:
Offenbart sind ein Verfahren zum Bremsen eines fremdkraftgebremsten Gerätes und ein Bremssystem eines derartigen fremdkraftgebremsten Gerätes, wobei in Abhängigkeit von einem Schleppmoment eines das Gerät ziehenden Nutzfahrzeuges ein Bremssignal zum Abbremsen des Anhängers bei Motorbremsung des Nutzfahrzeuges generiert wird.
Abstract:
A method for operating a vehicle braking system for motor vehicles including a hybrid or electric drive and hydraulically actutable wheel brakes on the front axle, wherein the wheels associated with the rear axle are driven at least partially by an electric motor that can be operated as a generator to recover braking energy and, in generator mode, exerts a braking force on the vehicle wheel associated with the respective axle, thereby generating a drag torque including the braking torque and the regeneration torque of the electric drive, the drag torque being separately regulatable on the front and rear axles. To prevent overbraking of the rear axle and a loss of driving stability of the vehicle, a regeneration torque acting on the rear axle is controlled or regulated such that the drag torque acting on the rear axle does not exceed a maximum drag torque value associated with that axle.
Abstract:
The invention relates to a coordination device (14, 15) for setpoints for brakes (17) and/or motor (19). It is based on a system in which different components contribute to regulating the longitudinal dynamics of a vehicle. In accordance with the invention, these components parallely produce intermediate setpoints for brakes and/or motor. Coordination devices (14 and/or 15) produce motor and/or brake setpoints, on the basis of intermediate setpoints which are close to them, and which are transmitted to the corresponding components.
Abstract:
The invention relates to a method for regulation of the torque after a change in load for hybrid vehicles, in which the torque is influenced on a load change, whereby a brake slip on the driving wheels, resulting from the load change, is counteracted from the phase in which said slip appears, such that an effect on the lateral guidance and hence the stability of the vehicle during driving can be excluded. According to the invention, on a brake slip occurring on the driven wheels (4, 5) as a result of the load change, the torque is applied by the electric motor(s) (2) of the hybrid vehicle.
Abstract:
The invention relates to a method and a device for controlling the drive nit of a vehicle. In a first step, input variables, which are independent of the drive unit, are used to form a first input variable. In a second step, a second input variable influencing at least one regulation variable of the drive unit is formed on the basis of said first input variable and at least one motor-specific input variable. The invention also describes an interface between the motor-independent and the motor-specific part of the motor control.
Abstract:
The invention relates to a method for influencing a torque conveyed by a driving motor of a motor vehicle. According to the inventive method, load alternation that occurs during cornering of the motor vehicle is detected. A minimum value of an intervening variable which influences the conveyed torque is detected when load alternation occurs during cornering and the driving motor is impinged upon with the minimum value of the intervening variable for a given time. The aim of the invention is to improve the load alternation behaviour of the motor vehicle during cornering and to improve performance of the motor vehicle in overrun. The detected minimum value of the intervening variable and/or the time is/are corrected according to the friction coefficient of a roadway and/or according to a deceleration of the motor vehicle, whereby the motor vehicle drives on said roadway.
Abstract:
The invention relates to a coordination device (14, 15) for setpoints for brakes (17) and/or motor (19). It is based on a system in which different components contribute to regulating the longitudinal dynamics of a vehicle. In accordance with the invention, these components parallely produce intermediate setpoints for brakes and/or motor. Coordination devices (14 and/or 15) produce motor and/or brake setpoints, on the basis of intermediate setpoints which are close to them, and which are transmitted to the corresponding components.