摘要:
A worm wheel is mounted to a steered shaft to rotate therewith. A brushless electric motor has an output shaft and is able to generate a power for assisting turning of the steered shaft when energized. A worm gear is coaxially connected to the output shaft of the motor to constitute a combined shaft structure. The worm gear is meshed with the worm wheel. Two bearings bear axially opposite end portions of the combined shaft structure respectively.
摘要:
A power steering apparatus includes a worm wheel mounted on the steering shaft, a worm shaft engaged with the worm wheel, a gear housing having a wheel accommodating portion to accommodate the worm wheel and a shaft accommodating portion to accommodate the worm shaft, a bearing mounted on the worm shaft to rotatably support the worm shaft, a holder disposed in the shaft accommodating portion and having a bearing retaining portion to retain the bearing and a resilient element disposed in the shaft accommodating portion and having a resilient body portion formed with a curvature. The resilient body portion is so structured as to become deformed in such a manner as to increase or decrease in diameter when the bearing shifts in a direction that moves the worm shaft away from the worm wheel and bias the bearing in a direction that urges the worm wheel toward the worm wheel.
摘要:
By finding a range of an allowable error of maximum meshing position of a worm shaft in an axial direction relative to a worm wheel, that is higher than that of a worm shaft of a conventional worm gear unit, a worm gear unit of the present invention is provided.
摘要:
A power steering apparatus includes a worm wheel mounted on the steering shaft, a worm shaft engaged with the worm wheel, a gear housing having a wheel accommodating portion to accommodate the worm wheel and a shaft accommodating portion to accommodate the worm shaft, a bearing mounted on the worm shaft to rotatably support the worm shaft, a holder disposed in the shaft accommodating portion and having a bearing retaining portion to retain the bearing and a resilient element disposed in the shaft accommodating portion and having a resilient body portion formed with a curvature. The resilient body portion is so structured as to become deformed in such a manner as to increase or decrease in diameter when the bearing shifts in a direction that moves the worm shaft away from the worm wheel and bias the bearing in a direction that urges the worm wheel toward the worm wheel.
摘要:
A steering control system for controlling turning of steered road wheels of a motor vehicle in accordance with steering of a steering wheel, comprises a steering angle sensor that detects a steering angle by which the steering wheel is turned; an actuator that turns the steered road wheels when operated; a vehicle operation condition sensor that detects an operation condition of the motor vehicle; a target value determining section that determines a steered angle target value of the steered road wheels in accordance with the steering angle detected by the steering angle sensor and the vehicle operation condition detected by the vehicle operation condition sensor; and an actuator drive circuit that drives the actuator in accordance with the steered angle target value.
摘要:
In vehicular suspension rigidity controlling apparatus and method, a plurality of suspensions intervened between a sprung mass of a vehicle body and an unsprung mass of a corresponding road wheel, a suspension rigidity adjusting section is installed to be enabled to adjust a rigidity of each suspension, a driving state of the vehicle is detected, a predictive determination is made whether the vehicular driving state is a state in which there is a possibility that the vehicle is rolled over from the detected driving state of the vehicle, and the rigidity of at least one of the suspensions is controllably adjusted in a direction to decrease a potential energy of the sprung mass of the vehicle when predictively determining that the vehicular driving state is the state that there is the possibility that the vehicle is rolled over.
摘要:
A connecting structure to connect electronic components electrically through a plurality of conducting lines each including a covered segment including a wire conductor covered with an insulating covering and an uncovered segment includes a molding unit and a sealing unit. The molding unit encloses a boundary portion between the covered segment and the uncovered segment of each of the conducting lines so that the uncovered segments project in a first direction from a first end of the molding unit and the covered segments project in a second direction from a second end of the molding unit, and thereby holding the conducting lines to fix positions of the conducting lines relative to one another. The sealing member of an adhesive adheres to the second end of the molding unit and adheres to each of the covered segments of the conducting lines projecting from the second end of the molding unit.
摘要:
A power steering system has: a steering shaft; a pinion shaft; a torque sensor; a rack housing communicating with inside of the sensor housing; a rack shaft provided in the rack housing; a motor housing communicating with inside of the rack housing; an electric motor provided in the motor housing; an ECU housing communicating with inside of the motor housing; a motor control unit housed in the ECU housing; and a respiration valve provided at any of the sensor housing, the rack housing and the motor housing and located at an upper side with respect to an upper end of the ECU housing in vehicle-mounted state. The respiration valve has function by which air passes through each house and between inside and outside of the ECU housing so as to absorb change of expansion/contraction of the air in the ECU housing while suppressing entry of water from the outside.
摘要:
A method for producing a connector has first to fifth processes. In the first process, a contact unit having a plurality of contacts and a tying part, is formed with the contacts tied at each axial direction middle part of the contacts by the tying part and with the contacts arranged parallel to each other. In the second process, a plating layer is formed on a part of the contact unit by soaking the contact unit in a plating bath from an axial direction one end side of the contact unit to an axial direction middle part of the tying part. In the third process, the contacts are isolated by cutting the tying part. In the fourth process, a part where the plating layer is formed, of the contact is inserted into a hole of a circuit board. In the fifth process, the contacts are soldered to the circuit board.
摘要:
A power steering system includes a wormshaft housed in a shaft housing portion and rotatably supported at one end by a bearing, a worm wheel adapted to mesh with the wormshaft, a bottomed, cylindrical bearing holder configured to enclose and fit onto the bearing for holding the bearing, and a preloading means located in the bearing holder for preloading the bearing in a direction of meshed-engagement of the worm gear. An adjustment-mechanism housing portion is formed at one end of the shaft housing portion for housing and retaining the bearing holder. A restriction wall is formed in the adjustment-mechanism housing portion for restricting a movement of the bearing holder. The preloading means includes a preload portion formed integral with the bearing holder, for forcing the bearing in the direction of meshed-engagement by a force of resiliency of the preload portion, thus ensuring sufficient accuracy of meshed-engagement without complicated machining.