| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 303114100 | Including hydraulic power booster | 16 |
| 20080258545 | Brake System for Motor Vehicles - A brake system for motor vehicles has a master cylinder ( | 10-23-2008 |
| 20080284242 | Slip Control Boost Braking System - A braking system is provided for applying pressurized hydraulic brake fluid to a plurality of vehicle brakes. The system includes a source of pressurized brake fluid, a first brake fluid circuit, and a boost valve for controlling a flow of brake fluid from the source to the first circuit. A first brake actuator is actuated by brake fluid from the first circuit and a second brake actuator operated by an application of brake fluid from the first circuit. The system further includes a second brake fluid circuit and a third brake fluid circuit. A third brake actuator is actuated by brake fluid from the second circuit. A fourth brake actuator actuated by brake fluid from the third circuit. A master cylinder includes a primary piston, a first secondary piston, and second secondary piston. The first and second secondary pistons are capable of being each independently operably displaced by an application of pressurized fluid from the first circuit to pressurize brake fluid in, respectively, the second circuit to operate the third brake actuator and the third circuit to operate the fourth brake circuit. | 11-20-2008 |
| 20090039702 | BRAKE CONTROL APPARATUS - A brake control apparatus for a vehicle includes: a master cylinder for raising a wheel cylinder pressure according to operation of a brake pedal; a booster for raising the wheel cylinder pressure by operating the master cylinder independently of operation of the brake pedal; a pressure regulator provided with a hydraulic pump for raising the wheel cylinder pressure independently of operation of the master cylinder; and a control section including: a first controller for controlling the booster; and a second controller for controlling the pressure regulator. The control section detects that at least one of the booster and the first controller is in a state of malfunction; selects one of backup modes according to the state of malfunction, wherein the backup modes restrict operation of at least one of the booster and the pressure regulator in different manners; and controls the wheel cylinder pressure in the selected backup mode. | 02-12-2009 |
| 20090096281 | LOCKING A VEHICLE'S WHEELS USING THE VEHICLE'S HYDRAULIC-ACTUATED SERVICE BRAKES - Hydraulic pressure for wheel lock is kept by trapping suitably pressurized brake fluid between a brake power unit ( | 04-16-2009 |
| 20090115244 | Brake Power Generator For A Hydraulic Vehicle Braking System - The invention concerns a brake force generator for a hydraulic vehicle braking system with a force input element which can be or is coupled with a brake pedal and is displaceable in a base housing of the brake force generator, a master brake cylinder in which is guided displaceably a primary piston, wherein the primary piston with the master brake cylinder delimits a primary pressure chamber to generate a hydraulic braking pressure, a pedal counter-force simulation device that can be coupled with the force input element and an actuation force generating device to exert an actuation force on the primary piston. | 05-07-2009 |
| 20090152941 | VEHICLE BRAKE DEVICE AND ITS RESERVOIR - A vehicular braking apparatus including a shut-off valve for shutting off, as needed, a flow of oil from a wheel cylinder to a master cylinder; a pressure increase-decrease control valve increasing and decreasing a pressure in the wheel cylinder; a reservoir receiving and storing in a reservoir chamber the oil from the wheel cylinder when the pressure increase-decrease control valve is in a pressure decrease position; a pump sucking in and pressuring the oil from the reservoir chamber and supplying the oil to the wheel cylinder via the pressure increase-decrease control valve when the pressure increase-decrease control valve is in a pressure increase position; and a communication control valve controlling communication between the master cylinder and the reservoir chamber. The communication control valve is a normally-closed valve and is opened by a suction pressure of the pump. | 06-18-2009 |
| 20090189440 | BRAKE HYDRAULIC PRESSURE CONTROL DEVICE - In a brake hydraulic pressure control device, a main ECU is provided with a first converter for converting serial signals or parallel signals inputted thereto into parallel signals or serial signals to output the converted signals, while a motor ECU arranged away from the main ECU is provided with a second converter for converting serial signals or parallel signals inputted thereto into parallel signals or serial signals to output the converted signals. The first and second converters are electrically connected with each other through at least one conductive member capable of serial communication. | 07-30-2009 |
| 20090206653 | BRAKE FLUID PRESSURE CONTROL DEVICE FOR BAR HANDLE VEHICLE - A brake fluid pressure control device for a bar handle vehicle has a front wheel brake system which imparts a braking force to a front wheel and a rear wheel brake system which imparts a braking force to a rear wheel. At least one of the brake systems has a master cylinder which generates brake fluid pressure in accordance with an operation amount of a brake operation element, first and second wheel cylinders both of which impart the brake force on one of the front and rear wheels, a first hydraulic path which communicates the master cylinder with the first wheel cylinder, a second hydraulic path which is branched from the first hydraulic path and connected to the second wheel cylinder and a boosting unit which boosts the brake fluid pressure in the second wheel cylinder without boosting the brake fluid pressure in the first wheel cylinder. | 08-20-2009 |
| 20090243380 | Brake system for a motorcycle, and motorcycle incorporating same - In a brake-by-wire brake system for a motorcycle, a pressure regulator is interposed between a pressure-generating unit and a brake caliper to regulate an output hydraulic pressure of the pressure generator, and to apply the regulated hydraulic pressure to a brake caliper. The pressure regulator is controlled by a control unit, based on input from an applied operating force detector, to minimize or prevent influences of engine vibration and heat on the pressure regulator. The pressure regulator is arranged between an engine body and a fuel tank disposed in back of an intake system connected to and extending upwardly from a cylinder head of the engine body; where the intake system is disposed on an upper side of the engine body. The pressure regulator is flexibly supported, through a flexibly resilient case, by a support cage attached to a body frame. | 10-01-2009 |
| 20090243381 | Brake system for a motorcycle, and motorcycle incorporating same - A brake system for a motorcycle includes a pressure-regulating unit interposed between a fluid pressure-generating unit and a wheel brake. Operation of a pressure-regulating unit is managed and controlled by a control unit, based primarily on an applied force detected by an operating amount detector. The fluid pressure-generating unit is disposed between an engine body, mounted on a body frame, and an exhaust pipe which is connected to a front surface of a cylinder head of the engine body, and which extends downwardly from the cylinder head. The fluid pressure-generating unit is arranged on the body frame such that, during operation of the motorcycle, the fluid pressure-generating unit is substantially shielded and isolated from heat emitted by the engine body and the exhaust pipe. | 10-01-2009 |
| 20100244551 | VEHICLE BRAKING APPARATUS - A vehicle braking apparatus includes: a control piston configured to operate so that a reaction force based on the fluid pressure of the boosted fluid pressure application chamber is balanced with a braking operation input from the brake operation member; an elastic member including: a first face adapted to contact with a simulator piston connected to the brake operation member and slidably accommodated in the control piston; and a second face; a sliding member adapted to contact with the second face, the sliding member being accommodated in the control piston; a spring disposed between the sliding member and the control piston; and an odd-shaped portion disposed at least one of the first and second faces of the elastic member, the odd-shaped portion configured to increase a contacting area of the elastic member and at least one of the simulator piston and the sliding member. | 09-30-2010 |
| 20120068529 | HYDRAULIC BRAKE SYSTEM FOR VEHICLE - A system including: a liquid-pressure source device that can supply working fluid to a brake device; and an ABS valve device. The system executes a first control in which a supply pressure of the working fluid becomes a target supply pressure and a second control for making the supply pressure fall within the target range. In this system, when the valve device is not being operated, the first control is executed. When the valve device is being operated, the second control is normally operated, and when the supply pressure is higher than a threshold value, the first control is executed. Where completion of the operation of the valve device is estimated, the system performs at least one of reducing the threshold value, reducing an upper limit value of the target range, increasing an electric power supplied to a pressure-reduce linear valve during the first control when the valve device is being operated, and reducing the target supply pressure. | 03-22-2012 |
| 20120074771 | Method for Operating a Hydraulic Vehicle Braking System that has an Anti-Lock Control Unit - A method for operating a hydraulic vehicle braking system that has an anti-lock control unit is disclosed. The system includes a brake master cylinder having an electromechanical brake booster. As the pressure level of the vehicle braking system decreases during an anti-lock control, in which all vehicle wheels are controlled, the boosting force of the brake booster is reduced in an anti-lock control of this type. | 03-29-2012 |
| 20120161507 | Method for Operating a Hydraulic Vehicle Braking System - A method for operating a hydraulic vehicle braking system having an electromechanical brake booster is disclosed. A shut-off valve that is located between a brake master cylinder and wheel brakes is closed to maintain a wheel-brake pressure and thus a braking force. To maintain a constant braking force, no current must be applied to an electric motor of the brake booster. The vehicle braking system can be used as a parking brake. The shut-off valve is present if the vehicle braking system has an anti-lock control device. | 06-28-2012 |
| 20120256480 | Method for Actuating a Hydraulic Vehicle Brake System - A method for actuating a hydraulic vehicle brake system, includes a master brake cylinder with a preferably electromechanical brake booster and a wheel slip control device. The master brake cylinder is actuated simultaneously with the brake booster, and hydraulic pumps of the wheel slip control device are driven by an electric motor. Pressure builds more quickly in the wheel brakes of the vehicle brake system for safety and assistance functions that require high pressure build-up dynamic. The method also increases the wheel brake pressure using the pressure that can be generated by actuating the master brake cylinder with the brake booster. | 10-11-2012 |
| 20160039401 | BRAKE SYSTEM FOR VEHICLE - Provided is a brake system for a vehicle including an input side hydraulic system, an output side hydraulic system, a first and a second shutoff valves to shut off flowing of the brake fluid between the input side hydraulic system and the output side hydraulic system when closed, a first and a second out-valves through which the brake fluid flows into a reservoir unit when opened, and a control unit to control a motor cylinder device of the output side hydraulic system to generate the brake fluid pressure according to the operational amount of a brake pedal. The control unit opens one or both of the first and the second shutoff valves and the first and the second out-valves when output characteristic of the brake fluid pressure generated by the motor cylinder device shifts from basic characteristic. | 02-11-2016 |
