摘要:
A method for applying a torque for vibration reduction and controlling the torque in a vehicle parking system may include detecting a driver's intention to release a parking state of a vehicle being parked on a slope and applying an offset torque to the parking gear to offset the torque generated by the weight of the vehicle and the gradient of the slope. An apparatus for applying the method may include a torque converter and a gear unit for amplifying and applying the output torque from an engine in an idle state to the parking gear, and/or a drive motor which is directly connected to the parking gear, generates a torque using a power of a battery, and applies the torque to the parking gear.
摘要:
An ECU executes a program including the steps of: if brake hold control is currently exerted , setting at zero a controlled value of a degree of operation of an accelerator pedal used as a controlled value of a degree of a request made by a driver for acceleration, to control a force output to drive the vehicle; if an actual value of the degree of operation of the accelerator pedal serving as an actual value of the degree of the request made by the driver for acceleration is larger than a predetermined degree, determining that there is a request from the driver for acceleration; outputting a command to cancel the brake hold control; and converging the controlled value of the degree of operation of the accelerator pedal to the actual value of the degree of operation of the accelerator pedal.
摘要:
A throttle control device mounted in a position to engage a hand grip on one end of the handlebar, the device including a tubular housing mounted on one end of the handlebar, a bearing sleeve rotatably mounted on the tubular housing, a cap rotatably mounted on the bearing sleeve, a ramp plate mounted on the housing, a number of rods connecting the ramp plate to the housing, and a number of balls mounted on the inside of the cap in alignment with the ramp plate whereby the bearing sleeve is moved into engagement with the hand grip on rotation of the cap.
摘要:
The improved release mechanism comprises a load sensor (50, 51, 150, 250, 350, 450) connected with a wheel brake (10, 110) to sense a change in wheel braking torque and communicate responsively with a mechanical brake control device (200) or a braking assistance servo-motor system (310, 320; 410, 420) which releases the brakes when the vehicle commences acceleration along an incline.
摘要:
The transmission includes a rotary shaft for transmitting drive to driving wheels of the vehicle, a fixed gearbox casing and a hill holder between the shaft and the gearbox casing. The hill holder, when operative, inhibits reverse movement of the vehicle and includes in series a sprag clutch and a multiplate brake. Fluid is supplied from a fluid operable control system for operating the brake and controls the rate of engagement of the brake.
摘要:
An improved electric parking brake system for a vehicle capable of controlling the brake-applying and releasing operations of a parking brake in an optimal manner in accordance with the gradient of the road on which the vehicle is stopped. The inventive parking brake system comprises in combination: a parking brake; an electromagnetic element in the form of a motor for controlling application and release of the parking brake; a command-signal producing device operable to alternatively feed a brake-application command signal or a brake-release command signal to the electromagnetic element; a gradient sensor adapted to detect the gradient of the road on which the vehicle rests for sending out a signal indicative of the gradient detected; and a controller adapted to receive the signals from the command-signal producing device and the gradient sensor for controlling the brake-applying operation and/or the brake-releasing operation of the electromagnetic element in a manner such that the parking brake can be operated optimally in accordance with the gradient of the road.
摘要:
In a brake control apparatus which comprises two brake systems for supplying pressurized fluid from a brake master cylinder to brake wheel cylinders through conduit systems independent from each other, one of said two brake systems including a first brake control valve which is able to check the fluid flow towards said brake master cylinder from one of said brake wheel cylinders on detecting an inclined roadway, and is able to open and close in accordance with clutch operation, another of said two brake systems includes a second brake control valve which is able to check the fluid flow towards said brake master cylinder from another of said brake wheel cylinders to response to operation of said first brake control valve.
摘要:
A brake pedal contacts a pin holding the push rod for the master cylinder, applying the hydraulic service brakes in the normal manner when the pedal is depressed. When the transmission lever is shifted into the park position a solenoid type servo is energized, engaging a pawl, mounted on the brake pedal, with a gear sector pivoted about the pivot point of the brake pedal. A one-way spring clutch is energized to hold the link in which the push rod pin is installed in the applied position during parking brake apply, retaining hydraulic brake pressure during that operation. When shifting to park, the brake pedal is raised by a vacuum servo so that the pedal can be actuated to apply the parking brake without contacting the push rod pin, and therefore without hydraulic pressure resistance. Movement of the pedal with the pawl engaged exerts tension on the parking brake cable through the gear sector to apply to parking the brake. When the ignition key is turned off, the spring clutch is released and the hydraulic service brakes are released. The pawl is retracted when the ignition key is turned off, and another spring clutch prevents release of the parking brake. This clutch is released upon shifting the transmission lever from park. A circuit is provided which prevents reengagement of the pawl until the transmission lever is shifted out of and then back into park.
摘要:
A brake control mechanism (14) includes a housing (20) with a stepped bore (22). A valve member (44) cooperates with a seat (46) to close communication from a master cylinder (10) to a brake assembly (12) when a vehicle is going up a hill. An actuator assembly (78) is operatively coupled to a clutch assembly (16) and is comprised of a plate (50) to control operation of the valve assembly in response to actuation of the clutch assembly (16). The plate (50) includes a relatively small axial dimension and forms a central opening (54) for receiving the valve member (44).
摘要:
A vehicle anti-theft device which maintains the braking function of the braking fluid by preventing reverse flow thereof through a closed main valve opening from the wheel cylinder back to the master cylinder until, following an authorized procedure, the main valve opening is cleared. As an improvement over the prior art, the main valve opening is closed manually by a member being seated therein, and this member is then held in place under pressure, the member, however, having an internal pressure-releasing valve for releasing the "holding pressure" when it is necessary to move the member into a clearance position off of the valve opening.