Abstract:
A design assisting apparatus of a steering device arranges a coordinate of a handle position reference point, a coordinate of a first universal joint reference point, a coordinate of a second universal joint reference point, and a coordinate of a steering gear reference point in a three-dimensional space, calculates a reference axis passing through the second universal joint reference point from the first universal joint reference point, calculates a phase angle which is an angle between a straight line from the handle position reference point to the first joint reference point when viewed along the reference axis and a straight line from the second joint reference point to the steering gear reference point when viewed along the reference axis, and determines success or failure of a condition in which the allowable range of the phase angle allowable error is included in the allowable range of the allowable torque variation rate.
Abstract:
The invention provides a steering apparatus which includes: an inner column 3; an outer column 4 fitted with the inner column 3 in such a manner that it is movable in a telescopic manner; a steering shaft 102 which is rotatably supported on the inner column 3 and outer column 4, and on the vehicle body rearward side of which a steering wheel 103 can be mounted; a lock apparatus 7 including a lock pin 73A which can be operated by an actuator to thereby prevent the rotation of the steering shaft 102; and, a lock housing 71 which is formed integrally with the outer column 4 and stores the lock apparatus 7 therein.
Abstract:
A steering column apparatus, includes: a fixed column member having a vehicle body attachment portion to be attached to a vehicle body; a column head supported by the fixed column member movably in a direction of a center shaft of the fixed column member; a wheel shaft, rotatably supported by the column head, for fixing a steering wheel to an end thereof; a column clamp, provided in the column head, for putting the column head into a state in which the column head is clamped to or unclamped from the fixed column member; an operation lever having a rocking shaft in the column head; and a mechanical transmission apparatus for transmitting a rocking motion of the operation lever to the column clamp.
Abstract:
A vehicular brake control apparatus includes a braked member that rotates together with a wheel, a braking member, an electric driving device that presses the braking member against the braked member to apply a braking torque to the wheel, when being supplied with electric current, an operational state detector that detects an operational state of the vehicle and provides a quantity of state representative of the operational state of the vehicle, a braking torque change request determiner that selectively determines that the braking torque is to be increased and that the braking torque is to be reduced, based on the quantity of state, and a current controller that controls supply of electrical current to the electric driving device so that the electric driving device is caused to drive in a predetermined direction if it is determined that the braking torque is to be increased, and so that the electric driving device does not drive in the predetermined direction if it is determined that the braking torque is to be reduced.
Abstract:
A steering column device (1), comprising a column body (2) having a swelled shell part (23) in deformed section swelled in the side direction of a steering shaft (3) beyond the portion of thereof where an upper bearing (31) is installed and having opposed walls parallel with each other, wherein a lower body mounting part (22) and an upper body mounting part (21) are formed in the swelled shell part (23), whereby a distance bracket and a lower bracket must not be prepared and fixedly positioned on the column body.
Abstract:
A steering column apparatus comprising a steering column provided with a steering lock mount portion on its outer circumference and supporting a steering shaft rotatably, a steering lock having a lock key for latching the steering shaft and a contact portion that is in contact with a part of the steering lock mount portion of the steering column, and a lock bracket having a contact portion that is in contact with another part of the steering lock mount portion. The contact portion of the steering lock and the contact portion of the lock bracket embrace the steering lock mount portion of the steering column. The steering lock mount portion of the steering column abuts at least one of the steering lock and the lock bracket with an abutting surface having a non-circular cross section.
Abstract:
A steering column adjustable height and inclination of steering wheel has a singularity of control lever for controlling clamping/unclamping of a telescopic mechanism and a tilting mechanism for the adjustment. An energizing direction inverting mechanism inverts direction of biasing force applied to the lever by an energizing member from clamping direction to unclamping direction halfway through operation of the lever by a driver.
Abstract:
A pair of shoes are expanded by driving an electric brake motor. Due to the friction engagement of the shoes with a drum inner peripheral surface, a braking force is applied to a wheel. An actual braking torque is detected by a strain sensor that detects the load applied to an anchor pin. Through a feedback control using the actual braking torque, the electric motor is driven and controlled so that the actual braking torque becomes equal to a target braking torque that is determined in accordance with the amount of operation of a brake pedal. When the actual braking torque is undetectable, for example, during a stop of a vehicle, the electric motor is driven and controlled through an actuating force control using the current through the electric motor that is detected by a motor current sensor. The braking torque control apparatus controls the actual braking torque to a magnitude corresponding to brake operation, regardless of the magnitude of the coefficient of friction between a friction engagement member and brake rotor. Even when the braking torque is undetectable, the apparatus executes brake control in a good manner.
Abstract:
A brake control apparatus for controlling at least three brake devices provided for braking respective at least three wheels of an automotive vehicle which includes two wheels located on respective left and right sides of the vehicle, wherein an emergency brake control portion is provided for controlling at least two normal brake devices when at least one of the at least three brake devices is defective, such that a difference between a total left-side braking force to be generated by at least one normal brake device located on the left side of the vehicle and a total right-side braking force to be generated by the other normal brake device or devices located on the right side is made larger when operations of all of the normal brake devices in a detected running condition of the vehicle are not likely to deteriorate the vehicle running stability, than when the operations of all of the normal brake devices in the detected running condition are likely to deteriorate the vehicle running stability.
Abstract:
[Problem]An object of the present invention is to provide an electric power steering apparatus that realizes weight saving and downsizing of component parts by counting and controlling the number of times of end hitting and simultaneously calculating a current limit value depending on the number of times of end hitting to limit assist.[Means for solving the problem]The present invention is an electric power steering apparatus that comprises an end hitting detection means that detects end hitting based on the steering torque and a differential steering torque obtained by differentiating the steering torque and outputs an end hitting detection signal, a counting means that counts a number 1 of times of end hitting detected by the end hitting detection means, a storage means that stores and keeps a total number of times of end hitting, and a current limit value calculating means that calculates a current limit value depending on a number 2 of times of end hitting obtained by adding the number 1 of times of end hitting from the counting means and the total number of times of end hitting from the storage means, wherein the current command value is limited based on the current limit value calculated by the current limit value calculating means.