Patent application number | Description | Published |
20130066533 | VEHICLE STOPPING DISTANCE IMPROVEMENTS - A method for reducing the braking distance for a vehicle having an anti-lock braking mechanism (ABS) and a hydraulic braking system detects a brake pressure requested by the vehicle's driver (P | 03-14-2013 |
20130124060 | HYDRAULIC BRAKING SYSTEM CONTROL IN AUTOMOTIVE VEHICLES - A hydraulic braking system for a vehicle incorporating a vehicle dynamics control system (VDCS) includes an electromechanically actuated brake master cylinder that hydraulic braking system detects a reduction in the brake pressure of the wheel brake device, caused due to intervention of the VDCS in the braking operation, and moves a piston of the brake master cylinder in a direction opposite to an actuating direction. This causes an additional flow of the brake fluid from a reservoir to one or more pressure chambers of the brake master cylinder, thus, avoiding the piston from reaching a stop condition, and hence, avoiding an inadequacy in the volume of the brake fluid available in the pressure chambers of the brake master cylinder. | 05-16-2013 |
20130133988 | METHOD FOR OPERATING A BRAKE SYSTEM OF A VEHICLE - A method for operating a brake system of a vehicle is described. The vehicle includes a service brake having a brake master cylinder and a plurality of wheels each having a respective brake device. Upon attainment of a given measurement value, in particular in the context of a stability control procedure, a brake pressure is built up by means of the brake master cylinder at the brake devices of all wheels. | 05-30-2013 |
20130169033 | METHOD FOR OPERATING A HYDRAULIC BRAKE SYSTEM OF A MOTOR VEHICLE AND A HYDRAULIC BRAKING SYSTEM - A method for operating a hydraulic brake system of a motor vehicle, comprising a pressure generating device used to build up additional brake pressure in a master brake cylinder or in addition to a master brake cylinder and in opposition to further pedal actuation wherein the additional pressure is a function of the pedal actuation travel distance. A method that reduces the limitations of a braking system's physical parameters on the build-up of additional braking pressure. | 07-04-2013 |
20130297168 | METHOD FOR OPERATING A BRAKE ASSISTANCE SYSTEM IN A VEHICLE - A method of operating a brake assistance system in a vehicle is disclosed. The method includes determining a braking operation as an emergency braking situation, which in turn includes sensing a braking pressure applied to a brake pedal, determining a braking pressure gradient of the braking pressure, and evaluating at least one factor of the driving situation, checking whether that factor indicates an emergency braking situation. If that factor indicates an emergency braking situation, adjustments to a braking pressure threshold value and a braking pressure gradient threshold value are carried out, reducing those threshold values by a predetermined amount. Thereafter, if both the braking pressure and the braking pressure gradient exceed the adjusted braking pressure threshold value and the adjusted braking pressure gradient threshold value, respectively, the braking operation is identified to be an emergency braking situation, accompanying activation of an emergency braking cycle. | 11-07-2013 |
20130304313 | METHOD FOR TESTING HYDRAULIC BRAKING SYSTEMS IN VEHICLES - A method for testing a hydraulic braking system. The method includes activating a brake master cylinder of the braking system mechatronically, and measuring a set of measured decision ratios pertaining to the distance travelled by the piston of the brake master cylinder to the corresponding pressure developed in the brake fluid. The measured decision ratios are then compared with a set of reference decision ratios. In a case where the measured decision ratios lie within a predetermined range, it is detected that the braking system is correctly filled with the brake fluid. However, in a case where the measured decision ratios lie outside the predetermined range, it is determined that the braking system has not been correctly filled with the brake fluid and some air is present in the brake fluid flow circuit of the braking system. | 11-14-2013 |
20130332043 | ADAPTING A BRAKING PROCESS - A deceleration of a vehicle is determined based on one or more wheel speeds of the vehicle. A brake pressure of the vehicle is determined. A model of a relationship of the deceleration and the brake pressure is produced. At least one of a vehicle load and a vehicle weight is determined by using the model. The brake pressure is adapted to at least one of the determined vehicle load and the vehicle weight. | 12-12-2013 |
20140058639 | SYSTEM AND METHOD FOR OPERATING A VEHICLE BRAKE SYSTEM - A method for operating a service brake system in a vehicle is described. The method includes the stages of determining whether the vehicle is stationary, and detecting whether the brake pressure exceeds a predetermined value in that stationary state. If the brake pressure value exceeds the predetermined value, as part of final stage, the method includes regulating the brake pressure to a predefined limiting value, where the predefined limiting value is sufficient to maintain the vehicle in that stationary state. | 02-27-2014 |
20140277981 | METHOD FOR OPERATING A HYDRAULIC BRAKE SYSTEM - A method of operating a hydraulic brake system is described. A method of operating a hydraulic brake system of a motor vehicle having a mechatronic brake booster to boost a hydraulic pressure generated in a brake master cylinder of the brake system by a brake pedal of the motor vehicle determines whether a propulsion request is present during operation of the motor vehicle and actuates the mechatronic brake booster when a propulsion request has ended or been substantially reduced. During a predetermined time interval after the propulsion request has ended or been reduced, the mechatronic brake booster is operated at a minimum intensity such that no braking effect occurs during the predetermined time interval, unless a braking request occurs. | 09-18-2014 |
20140316643 | HYDRAULIC BRAKE SYSTEM FOR A MOTOR VEHICLE AND FAULT CONDITION DETECTION FOR SAME - The present disclosure provides a hydraulic brake system for a motor vehicle and a method for the detection of a fault condition of the hydraulic brake system. An electronic control device determines at least one pressure value of the brake fluid of the brake system and at least one volume value of the brake master cylinder associated with the pressure value during an operation of a brake master cylinder. The electronic control device compares the determined pressure value and volume value with at least one pair of pressure-volume reference values for the detection of a fault condition of the brake system, wherein at least two different fault conditions of the brake system can be differentiated based on the comparison. | 10-23-2014 |
20140375114 | METHOD FOR OPERATING A HYDRAULIC BRAKE SYSTEM - A method for operating a motor vehicle hydraulic braking system having at least one electric motor-operated braking pressure generator. The output power of the electric motor-operated braking pressure generator is restricted during normal driving/braking situations and the restriction is temporarily deactivated upon identification of a critical driving situation, such as an overstressing of the brake system to include brake fade. | 12-25-2014 |