3742results about "Foot actuated initiations" patented technology

The present invention relates to a brake-by-wire actuator for actuating the brake system of a motor vehicle, comprising a simulator which can be acted upon by a brake pedal, with a signal of an actuation sensor being sent to an electronic control unit which controls a pressure source in response to the signal of the actuation sensor, and wherein an output of the pressure source is connected to a distributor device for the brake force and actuates individual wheel brakes of the vehicle, also comprising means for enabling actuation of the brakes by muscular power within a fallback mode. In order to provide an improved fallback mode in a brake-by-wire actuator, according to the invention, a lost travel is provided between a first actuation component such as a brake pedal in particular or a component articulated at the brake pedal and an actuation component that is connected downstream in the flux of force, in particular an input member, in order to uncouple the first actuation component mechanically from the reactions of force of the motor vehicle brake system in the by-wire mode.

A brake system for motor vehicles, which brake system can be actuated both by the vehicle driver and also independently of the vehicle driver in a “brake by wire” operating mode, is preferentially operated in the “brake by wire” operating mode, and can be operated in at least one fall-back operating mode in which only operation by the vehicle driver is possible. The brake system has inter alia an electrohydraulic pressure generating device (5) which outputs a brake system pressure, and a pressure modulation unit which has one inlet valve (6a-6d) and one outlet valve (7a-7d) per wheel brake (8, 9, 10, 11) for setting wheel-specific brake pressures derived from the brake system pressure, wherein the inlet and outlet valves (6a-6d, 7a-7d) output or transmit the brake system pressure when in the non-actuated state.

A wheel braking system comprises a motor driven gear pump, a relief line connecting the pump discharge to the pump intake, a wheel brake unit connected to the pump discharge, and a flow restriction in the relief line. A control unit controls the motor for the pump in response to an output signal of a brake pedal sensor. The brake pedal sensor generates the output signal indicative of the brake pedal stamping force. The control unit determines a desired motor speed for the sensed brake pedal stamping force and operates the motor.

The invention relates to a device for preventing faulty operation for using an accelerator as a brake by mistake based on computer vision, which comprises a vision sensor, an embedded system, a vehicle speed measuring unit, a vehicle driving angle measuring unit, a distance measuring unit, a voice alarm unit, an accelerator control unit, a brake control unit and a power supply unit, wherein the embedded system is used for reading the information of driving speed of a vehicle, a vehicle steering wheel angle, a video image of a front road of the vehicle, and the like, estimating a barrier distance on the front road and calculating a driving risk factor and driving risk change tendency according to the barrier distance, the vehicle steering wheel angle and the speed of the vehicle. The invention makes a corresponding driving decision according to the driving risk factor and the driving risk change tendency, controls the voice alarm unit to produce drive warning sound according to the driving decision, controls the accelerator control unit to allow the action effectiveness of stepping the accelerator by a driver and controls the brake control unit to control the automatic brake of the vehicle.

The invention relates to a device for automatically correcting an accelerator pedal misoperation to a braking operation by electrical and mechanical combination, which belongs to a device capable of obtaining a mechanical operation for driving a brake device by means of electrical signal conversion of a mechanical operation of stepping on an accelerator pedal by mistake. The device comprises a sensor and is characterized in that the device further comprises a signal analyzer and a brake starting mechanism, wherein the sensor is connected with the signal analyzer to transmit an accelerator signal from the sensor to the signal analyzer, the signal analyzer is connected with the brake starting mechanism and transmits a brake start-up signal to the brake starting mechanism. The invention has the advantages that the mechanical operation of stepping on the accelerator pedal by mistake is converted into an accelerator electrical signal through the sensor, an electrical signal of serious accelerator pedal misoperation is analyzed, then the electrical signal of serious accelerator pedal misoperation is converted into an electrical signal for starting the brake device, and the brake starting mechanism generates a braking mechanical operation, as a result, the mechanical operation of stepping on the accelerator pedal by mistake is automatically converted into the braking operation of thevehicle, which prevents the occurrence of serious vehicle accidents caused by the misoperation of the accelerator pedal.

The invention relates to an automobile brake pedal mechanism and a pedal feel simulator thereof. The brake pedal mechanism comprises a brake pedal, a pedal displacement sensor, the pedal feel simulator, a microwave distance-measuring radar, a central processing unit and the like, wherein the pedal displacement sensor adopts two variable resistors for identifying the brake intention of a driver; the pedal feel simulator is based on a magnetorheological fluid principle; the central processing unit can controls the voltage volume of a coil and adjusts the damp of the simulator according to the pedal speed or distance information of front vehicles, people or barriers provided by the microwave distance-measuring radar, so that the driver has excellent operation feel, and the stability, comfort and safety of brake can be improved. Meanwhile, by changing the set value in the central processing unit, the damp output curve of the pedal feel simulator can be adjusted to meet requirements of different vehicle models or drivers. The automobile brake pedal mechanism and the pedal feel simulator thereof have the advantages of simple structure, quick response, good adaptability and the like, and is convenient in operation,.

There is disclosed a wheeled vehicle (10) adapted to be driven in a primary direction or an opposite secondary direction. The vehicle has a vehicle platform (32), and a group of vehicle components rotatably mounted on the platform which are rotatable as a group through 180 degrees relative to the platform. The group of components includes a driver's seat (38), steering wheel (40), foot pedals (42) and instrument console (44). Rotation of the group of components enables the driver's seat (and hence the driver) to face in the primary direction or secondary direction.

A long hole is provided on a bracket fixedly provided on a rear face of a dashboard such that the long hole is adjacent to a support hole supporting a pivot of an operating pedal with a partition wall provided between the long hole and the long hole. Also, a control lever is pivotally supported on a front face of the pivot via the operating pedal such that a lower arm of the control lever faces the front face. A stopper member fixedly provided on a vehicle body faces an upper arm of the control lever from behind. Therefore, when the control lever abuts against the stopper member and rotates as the dashboard is deformed rearward, the pivot breaks the partition wall to move rearward within the long hole due to an excessive load received from the control lever. Thus, the support hole of the pivot of the operating pedal can be formed into a circular shape conforming to an outer peripheral face of the pivot, so that no rattling occurs between the support hole and the pivot. Further, when the dashboard is deformed rearward, the pivot is moved rearward to prevent a tread portion of the operating pedal from coming closer to a driver.

An electric power booster (12) where driver command is monitored by a transducer (38) on an input rod (34). This signal is converted to the appropriate voltage/current and operates an electric motor (42). The motor output shaft (68) is connected to a planetary gear reducer (72) appropriately sized to provide no more than +/−1/4 turn of an eccentric cam (14). Two master cylinders (16, 18) power piston rods (22, 24) ride diametrically opposed on the cam surface (20). As the cam rotates the piston rods are forced out pressurizing the respective hydraulic circuits and thereby providing fluid to each brake circuit (28, 30). In the event of power failure as well as to augment the output of the motor, the input rod is mechanically linked directly to the cam offset from the center allowing the driver to manually rotate the cam thereby pressurizing the brake circuits.

A control system for motor vehicles that uses physical activity to operate the acceleration of a vehicle comprising a mechanical controller that proportionally converts kinetic movement into an electronic signal. An electronic controller uses this signal as well as the current vehicle speed and user preferences to calculate a new pattern of energy flow to the engine. The controller then drives a system that manipulates the vehicle's acceleration or deceleration.

The invention relates to an interlocking structure of an automobile braking system. The interlocking structure of the automobile braking system comprises a brake pedal lever, a clutch pedal lever, an interlocking transmission mechanism and an interlocking actuator, wherein the interlocking transmission mechanism is movably connected with the brake pedal lever, the interlocking actuator is movably connected with the interlocking transmission mechanism, the interlocking actuator moves away from or close to the clutch pedal lever under the control of the interlocking transmission mechanism, and the interlocking actuator adjusts the position of the clutch pedal lever through the relative motion with the clutch pedal lever. By utilizing the interlocking structure of the automobile braking system of the above structure, the united braking of an automobile brake and a clutch during emergency braking can be achieved, the operating procedure of the emergency braking can be simplified, and the normal driving operation of an automobile is not affected. Besides, the interlocking structure of the automobile braking system is simple in structure, easy to disassemble and assemble, convenient to use, safe and reliable and has a wider application range.

A brake system for motor vehicles comprising a brake master cylinder which can be activated by means of a brake pedal and to which wheel brakes are connected. The brake system also comprises an electrically controllable pressure-generating device, a pressure-regulating valve arrangement to regulate a wheel brake pressure set at a wheel brake, a first electronic control and regulating unit which controls at least one of the pressure-generating device, the pressure-regulating valve arrangement, and an electrically controllable auxiliary pressure-generating device by means of which the brake master cylinder can be activated by means of which a pressure in an intermediate chamber of the brake master cylinder can be controlled or regulated.

A pedal apparatus of a vehicle according to the present invention comprises a supporting bracket fixed to a dash panel of the vehicle, a pedal arm pivotally connected to the supporting bracket, and a lever hooked to the pedal arm and applying a predetermined torque to the pedal arm, wherein the lever is struck by a striking portion under deformation by a front impact of the vehicle causing the pedal arm to rotate in a direction of the front of the vehicle by torque transferred from the lever.

A brake pedal emulator mechanism includes a foamed plastic elastomeric piece compressed by a brake pedal which piece has a variable spring rate and produces hysteresis when compressed to emulate the brake pedal feel of a conventional hydraulic brake system. The foamed plastic may comprise microcellular urethane or a foamed silicone elastomer. Various combinations of the foamed plastic piece with mechanical springs, solid elastomeric pieces, or gas springs can be used to create a particular reaction force characteristic, as well as various shapes of the foamed plastic elastomeric piece itself.

The invention discloses a hybrid power car braking coordinated control system and a control method thereof, aiming at overcoming the problem that regenerative braking moment and hydraulic braking moment of a hybrid power car in the prior art can not be controlled in a cooperative way. The system comprises an electronic braking maneuver subsystem, a coordinating controller (29), a hydraulic braking moment regulating subsystem and a regenerative braking moment subsystem; wherein, the coordinating controller (29) is respectively and electrically connected with the electronic braking maneuver subsystem, the hydraulic braking moment regulating subsystem and the regenerative braking moment subsystem. The coordinating controller (29) comprises a power control circuit (63), a memory (64), a coordinating controller slot (65), a sensor input signal processing circuit (67), a CAN signal processing circuit (68) and a central processing unit (CPU) (69) which is connected with all the parts by adopting a circuit connecting line (70). The invention also provides a method for coordinating and controlling the regenerative braking moment and the hydraulic braking moment.

The invention discloses a simulator for feeling an automobile brake pedal, comprising an oil storage cup, a brake master cylinder and a brake pedal which is provided with a pedal stroke sensor; a simulator valve block is connected between the first chamber and second chamber of the brake master cylinder and an ABS valve block; the hydraulic oil in the first chamber of the brake master cylinder is accessed into the simulator valve block and then is divided into two paths after passing a pressure sensor; one path of the hydraulic oil in series connection with a third electromagnetic valve is connected with the ABS valve block, the other path in series connection with a fourth electromagnetic valve is connected with stimulator-free spring chamber of a stimulator cylinder body; the hydraulic oil in the second chamber of the brake master cylinder is accessed into the simulator valve block and then is divided into two paths; one path of the hydraulic oil in series connection with a second electromagnetic valve is connected with the ABS valve block, the other path in series connection with a first electromagnetic valve is connected with the oil storage cup; and the stimulator spring chamber of the stimulator cylinder body is connected with the oil storage cup. The simulator has simple structure, is convenient for being installed in an automobile, can accurately obtain the brake intention of a driver and truly feed back the feeling of the driver stamping the pedal, and can realize emergent brake function of an electronic control braking system; and the property of the pedal is stable.

A method and system for operating a motor vehicle brake system, actuated in a “Brake-by-Wire” operating mode both by the vehicle driver and also independent of the vehicle driver, preferably operated in the “Brake-by-Wire” operating mode, and which can be operated in at least one fall-back operating mode, in which only operation by the vehicle driver is possible. The brake system has an electrohydraulic pressure and volume setting device, which electronically emits a brake system pressure under control, and a pressure modulation unit having, for each wheel brake, inlet and outlet valves for setting wheel-specific brake pressures. For setting wheel-specific brake pressures, the inlet and outlet valves are actuated analogously by being energized by different electrical currents, in order to assign a pressurizing agent volume flow provided by the pressure and volume setting device to the wheel brakes that have a pressure change requirement.

The invention relates to a brake system for motor vehicles, comprising a master brake cylinder (2), to each of the two pressure chambers of which a brake circuit (I, II) with wheel brakes (8, 9, 10, 11) can be connected or is connected, an electrically actuatable block valve (23a, 23b) for each brake circuit (I, II) for separating the pressure chamber (17, 18) from the brake circuit, a first electrically controllable pressure supply unit (5), an electrically actuatable sequence valve (26a, 26b) for each brake circuit (I, II) for hydraulically connecting the first pressure supply unit (5) to the brake circuit, and a simulation unit (3) which can be hydraulically connected to at least one pressure chamber (17) of the master brake cylinder (2) by means of a simulator release valve (32), wherein a second electrically controllable pressure supply unit (49, 149) having at least one intake port and a pressure port is provided, the intake port of which is connected or can be connected to one of the pressure chambers (17, 18) and the pressure port of which can be connected or is connected to the brake circuit (I, II) associated with the pressure chamber. The invention further relates to a method for operating a brake system.

The invention relates to a brake system with a pedal travel simulator that, during the braking mode brake-by-wire , conveys a comfortable pedal feel to the vehicle driver. In order to boost the actuation force even in the event of a breakdown of the control electronics or loss of electric power supply, the invention provides that a fourth piston (8) is mounted between the first (2) and the third piston (5), and this fourth piston, while interacting with the third piston (5), delimits a hydraulic chamber (9) having a hydraulic connection to a pressure medium reservoir (31), said connection being able to be blocked by an actuation of the brake pedal, and pressure can be built up in the chamber by the actuation forces. The invention also provides that a valve assembly (10) can be controlled by the hydraulic pressure built-up inside the chamber (9), and the pressure built-up in the intermediate space (11) can be changed by this valve assembly.

The invention provides a method of actuating an airplane brake fitted with at least one electromechanical actuator including a pusher that can be displaced in controlled manner in register with a stack of disks to apply a force on the stack of disks in response to a braking reference signal, the method comprising the steps of: when the braking reference signal crosses a contact threshold, controlling the actuator so that the pusher approaches the stack of disks, until the pusher reaches a contact position with the stack of disks; storing said contact position; and then immediately afterwards, controlling the actuator so that the pusher applies a force on the stack of disks in response to the braking reference signal.

In a vehicle driving support apparatus, if a brake pedal operation by a driver is detected during a braking control, a cruise control unit determines that it is highly likely that the driver recognizes a possibility of a collision of a subject vehicle and a obstacle, and halts the braking control. On the other hand, if a depression amount of the brake pedal by the driver changes to a release side at or over a preset speed, the cruise control unit restarts the halted braking control.

A hydraulic brake system includes a first actuator for a regeneration coordination brake control and a second actuator for maintaining the stability of a vehicle in a hydraulic pressure passage between a master cylinder and a wheel cylinder. The first actuator is controlled by a first ECU, and the second actuator is controlled by a second ECU. When a failure occurs in the first actuator or the first ECU, the second ECU operates the second actuator according to the amount of a brake operation, and assists braking of a wheel.

An electromechanical braking system is disclosed that includes a brake rotor, a brake stator, an EMA (52) having a rotor shaft (36), a ram (42) operably connected to the EMA (52) having a first end movable between a first position urging the brake stator against the brake rotor and a second position, a clamp device (32) shiftable between a first clamping position in clamping engagement with the rotor shaft (36) and a second clamping position and a clamp controller (46) for shifting the clamping device (32) between the first and second clamping positions. A method of using the braking system as a parking brake is also disclosed.

The invention relates to a method for providing haptic information to the driver of a motor vehicle, equipped with a brake-by-wire brake system, about the operating state of the brake system, in which method the brake pedal characteristic is generated by a pedal travel simulator, in the form of a functional relationship between the brake pedal opposing force and the brake pedal travel, and is modified as a function of an operating state. In order to provide the driver with the haptic information channel via which electronically controlled information can be communicated to the driver during braking, without the impression of a defect arising, the invention proposes that a basic brake pedal characteristic is generated by a passive simulator spring which assigns pedal travel, on which pedal return travel transporting the haptic information is superimposed, to a given pedal force in an unchanging, constant relationship.

The invention relates to a vehicle throttle anti-misstep brake device. The device comprises a brake pedal, a throttle pedal and a centrifugal clutch; the centrifugal clutch comprises an inner ring and an outer ring, two movable claws are arranged on the inner ring, the movable claws can rotate around pivots, fixed on the inner ring, of the movable claws; the tail end of each movable claw is provided with a limit stop, the middle part of each movable claw is connected with one end of a tensioning spring; and the other end of the tensioning spring is fixed on the inner ring; tooth sockets matched with the claw tips of the movable claws are arranged on the outer ring; the throttle pedal is connected with the inner ring through a first connecting rod; and a throttle pull wire is wound on the inner ring; the brake pedal is connected with the outer ring through a second connecting rod; and the outer ring is connected with a brake cylinder trough a brake pull wire. The vehicle throttle anti-misstep brake device can be used for preventing a driver from stepping the throttle mistakenly when braking and further causing accidents.

A foldable brake pedal apparatus of an autonomous vehicle, may include a pedal housing to be mounted in a space below a driver's seat; a pedal pad pivotably coupled to the pedal housing via a hinge pin, in a response to movement of s driver's foot, and configured to be selectively switchable to a hidden state in which the pedal pad is inserted into the pedal housing or a popped-up state in which the pedal pad protrudes from the pedal housing; an actuator fixed in the pedal housing, coupled to the pedal pad and configured to generate power to pivot the pedal pad to allow the pedal pad to be in the hidden state or in the popped-up state; and a high load spring module pivotably coupled to the pedal housing, having one end portion thereof and the other end portion connected to the pedal pad and the actuator, and configured to transmit the power of the actuator to the pedal pad.