Patent classifications
B60T8/3255
Electric booster
Provided is an electric booster which can be downsized by enhancing space efficiency while reducing the effect of a magnetic field from outside on a magnetic sensor by means of a magnetic shield. The stroke amount of an input plunger 29 connected to a brake pedal 6 is detected by a stroke detection sensor. The operation of an electric motor is controlled by controller on the basis of the stroke amount of the input plunger to thrust a primary piston through a ball screw mechanism, and brake fluid pressure is thus generated by a master cylinder 4. The stroke detection device uses a Hall IC to detect magnetic flux densities from first and second magnet members mounted on the input plunger to obtain the stroke of the input plunger. The first and second magnet members and the Hall IC are disposed inside a linear-motion member formed of a cylindrical magnetic body of the ball screw mechanism to be magnetically shielded.
BRAKING CONTROL APPARATUS AND METHOD FOR VEHICLE
A braking control apparatus for a vehicle including: a pedal stroke sensing unit configured to sense a pedal stroke of a brake pedal; a pedal simulator pressure sensing unit configured to sense pressure of a pedal simulator that provides a reaction force in response to a stepping force of the brake pedal; and a control unit configured to apply different computation methods by selectively utilizing a pedal stroke STR sensed by the pedal stroke sensing unit and pedal simulator pressure P_SIM sensed by the pedal simulator pressure sensing unit at a plurality of stages defined while the brake pedal is pressed and released, and decide required braking pressure P which is required for braking the vehicle.
Vehicular collision avoidance control device and vehicular collision avoidance control method
A vehicular collision avoidance control device includes: a collision avoidance control unit that receives a vehicle deceleration rate that is an actual deceleration rate of a traveling vehicle and obtains a first desired deceleration rate for avoiding collision with an obstacle based on the received vehicle deceleration rate, a relative distance to the obstacle, and a target relative distance; and a brake control unit that obtains a desired deceleration rate for controlling a brake device by performing first control based on the received vehicle deceleration rate and the first desired deceleration rate and performing second control based on the first desired deceleration rate and stops the first control upon detection of a brake operation performed by a driver.
AIR SUSPENSION EVACUATION FOR IMPROVED BRAKING PERFORMANCE
The invention i.a. relates to a load transfer arrangement (10) for a vehicle (12) including a chassis (14) with at least one braked axle (16), the arrangement (10) comprising: a non-driven load axle (18), and an air suspension assembly (20) including at least one air cushion (22) arranged between the chassis (14) and the non-driven load axle (18) in order to transfer load from the braked axle(s) (16) to the non-driven load axle (18), wherein the non-driven load axle (18) is unbraked, and wherein the arrangement (10) further comprises: an evacuation controller (24) configured to provide a pressure release trigger in response to a current or predicted braking event of the vehicle (12), and at least one evacuation valve (26) configured to, in response to receiving the pressure release trigger, evacuate pressure from the at least one air cushion (22) in order to remove load from the non-driven load axle (18) and increase load on the braked axle(s) (16).
CONTROL OF DRIVE OF A LIFT TRUCK
Method for controlling of at least two electric motors (230A, 230B) of an electric lift truck (200), each of the at least two electric motors (230A, 230B) controlled with a respective electrical drive (244A, 244B) and arranged to generate a torque to a respective drive wheel (210), the method comprising: generating a respective control signal to each of the respective electrical drive (244A, 244B) in response to a detection that a speed of the lift truck (200) is below a reference value and that a steering angle is within a reference range, the respective control signal carrying an speed orders (01, 02) for the each respective electrical drive (244A, 244B) for generating torques to the drive wheels (210). Aspects relating to a method, a control unit a computer program product and a lift truck are provided.
Feedback operation of a vehicle brake pedal
The disclosure relates to a method for operating a brake pedal unit of a vehicle, comprising feedback to a driver. The brake pedal unit has a multiplicity of pressure-sensitive or force-sensitive sensors. According to the disclosure, in the method, output signals of the multiplicity of pressure-sensitive or force-sensitive sensors are detected. At least one position and/or an orientation of the operator's foot relative to the foot support element is determined from the detected output signals. A feedback signal that characterizes the determined position and/or orientation is output at an output unit of the vehicle.
BRAKING APPARATUS AND METHOD FOR VEHICLE
A braking apparatus for a vehicle may include: a pedal stroke sensing unit configured to sense a pedal stroke of a brake pedal, and output a pedal stroke signal; and a control unit configured to control a brake actuator for braking the vehicle, based on the pedal stroke signal inputted from the pedal stroke sensing unit, and output a ramp signal in which information on whether a braking action of the vehicle has been performed is reflected, based on a reference voltage signal which is preset to determine whether the brake pedal is stepped on and a voltage signal converted from the pedal stroke signal.
Technique for Redundant Registration of an Actuation of a Motor-Vehicle Braking System
A technique is described for the redundant registering of an actuation of a motor-vehicle brake system. A device which is provided for this purpose comprises a first sensor for generating a first sensor signal which indicates a movement of a mechanical input component of the brake system, and a second sensor for generating a second sensor signal which indicates a hydraulic pressure in the brake system. A processing device which is coupled to the two sensors is configured for selectively outputting an actuation signal which is generated on the basis of the first sensor signal or an actuation signal which is generated on the basis of the second sensor signal. The actuation signal indicates an actuation of the brake system.
VEHICLE BRAKE SYSTEM
A highly reliable vehicle brake system that includes an electric brake and achieves redundancy at low cost is provided.
A vehicle brake system (1) is provided to a wheel (Wa) of a vehicle (VB), and includes an electric brake (16a) provided with a motor (80), a driver (60) that drives the motor (80), and a first control device (10) provided with a master controller (30) and a first sub-controller (40) connected to each other. The electric brake (16a) is controllable by both the master controller (30) and the first sub-controller (40).
ELECTRIC DRIVE VEHICLE WITH LOW SPEED CREEP
Systems and methods to control the vehicle speed of a vehicle includes a controller communicatively coupled to a motor and a brake mechanism. The controller is structured to receive an indication of a desired change in the vehicle speed, activate a motor speed governor responsive to the brake mechanism being in a released state, adjust an output torque responsive to the vehicle speed, wherein as a load corresponding to the motor increases the vehicle speed decreases.