Patent application number | Description | Published |
20080230328 | METHOD AND BOOSTER WHICH ARE INTENDED TO DETECT THE BRAKING OF A VEHICLE, AND METHOD OF PRODUCING SUCH A BOOSTER - A method of detecting the braking of a vehicle comprising a push rod ( | 09-25-2008 |
20110094218 | BRAKE INSTALLATION WITH MASTER CYLINDER AND BRAKE BOOSTER BUT NO PUSH ROD - Brake installation consisting of a master cylinder associated with a brake booster furnished with a motor driving an actuator piston and acting on the primary piston of the master cylinder by means of a reaction disk against which the piston rests. For a safety operation, the hydraulic actuator connected to the control rod actuated by the brake pedal rests on the rear face of the reaction disk. The actuator piston is combined with an auxiliary piston in order to interact with the reaction disk and it is guided by its sleeve-shaped portion in a bore of the body of the brake booster. An adapting shim is supported by the auxiliary piston in order to receive as a support the end of a rear rod, secured to the primary piston of the master cylinder. The thickness of the assembly formed by the adapting shim and the auxiliary piston is defined on mounting of the master cylinder and of the brake booster as a function of the free travel measured previously. | 04-28-2011 |
20110126535 | HYDRAULIC BRAKE BOOSTER DEVICE - In order to address a problem with the effectiveness of a brake booster device, provision is made for the latter to be produced in the form of hydraulic servo control. In such an instance, a master cylinder ( | 06-02-2011 |
20110254362 | HYDRAULIC BRAKING ASSEMBLY FOR A VEHICLE COMPRISING A HYDRAULIC FLUID LEVEL SENSOR - A hydraulic braking assembly ( | 10-20-2011 |
20120167560 | SERVO BRAKE ACTUATOR PISTON AND SERVO BRAKE EQUIPPED WITH SUCH A PISTON - Actuator piston ( | 07-05-2012 |
20120167565 | BRAKE SYSTEM WITH ELECTRIC SERVO BRAKES - Brake system comprising a thrust rod ( | 07-05-2012 |
20130221737 | ELECTRO-HYDRAULIC DYNAMIC BRAKING SYSTEM AND CONTROL METHOD - The system includes a high-pressure accumulator connected to the primary chamber of the master cylinder and to the inlet of the ESP module by a solenoid valve. The connection between the primary chamber and the brake fluid reservoir is equipped with a solenoid valve. A control circuit controls the solenoid valve of the reservoir and the solenoid valve of the accumulator, depending on the braking method selected or imposed. The dynamic braking phase is broken down into two tasks, one with energy recovery that involves isolating the master cylinder from the wheel brakes until deceleration to a threshold speed, followed by another step until full stop that involves connecting the primary chamber alone to the high-pressure accumulator and to the ESP module to provide the latter with pressurized brake fluid from the accumulator and supply the wheel brakes for mechanical braking. | 08-29-2013 |
20130312405 | VEHICLE BRAKE SYSTEM WITH AN ELECTRIC SERVOMOTOR AND HYDRAULIC REACTION PISTON - A brake system is described with a master cylinder actuated by a control rod connected to a plunger piston and an actuator piston acting directly on the primary piston. A hydraulic reaction piston is housed in the piston so it can be subjected to the pressure of the primary chamber and to the opposing action of a reaction spring. The plunger piston can push the reaction piston directly to push the master cylinder. | 11-28-2013 |
20140041378 | BRAKE ASSIST DEVICE AND MOTOR VEHICLE COMPRISING SUCH A DEVICE - A brake-assist device for a motor vehicle having a servomotor is described. A servomotor has a plunger piston, a moving part, and an arrangement to move the moving part into position with respect to the plunger piston. The servomotor is actuated by a control rod. The control rod has a first end that presses upon the plunger piston and a second end to receive a force exerted by a brake pedal intended to be moved by a driver of the vehicle. The servomotor includes a sensor interposed in a contact space between the plunger piston and the moving part. A spring is compressed between the plunger piston and the moving part. The servomotor includes an arrangement for displacing the plunger piston in the contact space based on the driving mode. A stiffness of the spring is sufficiently high for an onset of braking to occur only with a striking force that is significantly higher during a reactive driving mode than it is during a calm driving mode. | 02-13-2014 |