3782results 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.

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.

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.

The present invention relates to ambulance cots, cot systems and methods of using the same. In particular, the present invention provides an ambulance cot comprising a hydraulic system and a tip angle monitoring, recording and alert system, and methods of using the same (e.g., to transport subjects and / or to detect and / or record operational data related to cot usage).

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.

The invention relates to an electronic control device for a brake system of a motor vehicle, comprising at least one interface for an operating element, in particular a parking brake operating switch, and at least two actuating circuits for electrical actuators, in particular electrical parking brake actuators. According to the invention, the electronic control device comprises two or more independent processors, which are directly connected to each other via a data bus. A motor vehicle equipped with a control device or brake system according to the invention requires no transmission lock in an automatic transmission.

An auxiliary braking system and method of controlling the braking a towed vehicle is provided that includes a remote control that is in selective communication with an auxiliary braking unit positioned in a towing vehicle. More specifically, it is often desirable for the operator of the towing vehicle to assess the performance of the auxiliary braking apparatus positioned in a towed vehicle. In addition, it is often advantageous for the operator to perform real time adjustments to the performance parameters of the auxiliary braking apparatus positioned in the towing vehicle without having to cease driving and physically access the auxiliary braking device.

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 discloses an active brake pedal travel simulator and a control method of the active brake pedal travel simulator. The active brake pedal travel simulator and the control method of the active brake pedal travel simulator and aim to solve the problem that in the prior art, requirement for hydraulic adjusting unit performance is too high, and utilization of existing components is insufficient. The active brake pedal travel simulator comprises an inner circulation nut with teeth, a screw rod ejector rod, a driving gear, a motor, a second piston, a first piston, a simulator cylinder body, a spacing board, a limit switch and a rear cover, wherein the rear cover and the simulator cylinder body are arranged on the left side and the right side of the spacing board, the inner circulation nut with the teeth is arranged on the rear cover and the spacing board through two thrust bearings, the left end of the screw rod ejector rod is arranged inside a hole of the inner circulation nut with the teeth and is in rolling connected with the inner circulation nut with the teeth, the right end of the screw rod ejector rod is inserted into the second piston inside the simulator body, the first piston is arranged on the right side of the piston, the motor is arranged on the lower portion of the simulator cylinder body, the motor and the driving gear are fixedly connected, a motor control device is arranged on the motor, the limit switch is arranged on the rear cover, and the limit switch and the motor control device are in wire connection. The invention further provides the control method of the active brake pedal travel simulator.

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.