10results about "Steering gears" patented technology

The application relates to the automobile technical field and discloses a steering mechanism of a vehicle and the vehicle, wherein the steering mechanism comprises a steering knuckle, a lower swing arm, a steering lever, a transmission rod and a first shaft; the lower swing arm has a first mounting point and a second mounting point; along the left-right direction of the vehicle, the first mounting point is located at the end of the lower swing arm facing the steering knuckle, the first mounting point is hinged to the steering knuckle, and the second mounting point is arranged at intervals from the first mounting point; one end of the steering lever is connected to the steering knuckle through the transmission rod, the first shaft is installed at the other end of the steering lever, and the first shaft is connected to the second mounting point through a bearing. The steering lever and the lower swing arm are connected through the bearing, so that the steering lever only has a rotation freedom degree relative to the lower swing arm, the stability of the swing of the steering lever is improved, and the steering precision of the steering mechanism is improved.

A rack piston of a hydraulic steering assembly divides a hollow portion of a housing into an upper cylinder above the rack piston and a lower cylinder below the rack piston. The rack piston defines a rack cavity. An auto-bleeder bi-directional flow valve disposed in the rack piston allows for the flow of air and hydraulic fluid in and out of the rack cavity. The bi-directional flow valve defines a flow path through the rack piston between the rack cavity and the upper cylinder. When a differential pressure between the upper cylinder and the lower cylinder is greater than a threshold, the steel ball blocks the flow path by compressing a first spring or a second spring. Alternatively, the first spring and the second spring hold the steel ball in a neutral position to allow for the flow of air and hydraulic fluid in and out of the rack cavity.

The invention relates to a steering device (1), in particular a steer-by-wire steering device for a vehicle, comprising a steering rod (2) which is arranged to be coupled at both axial ends to a wheel of the vehicle and which has a sensor toothing (15) at least in a partial region, an actuator (3) which is coupled to the steering rod (2) in such a way that a rotation of the actuator (3) causes a linear movement of the steering rod (2) in order to change the position of the steering rod (2) along a predetermined steering rod stroke (VWL), a sensor toothing device (4) which has a toothing corresponding to the sensor toothing (15) of the steering rod (2) at least in a partial region and which is in engagement with the steering toothing (15) in such a way that a linear movement of the steering rod (2) causes a change in the position of the sensor toothing device (4) along a predetermined sensor stroke, wherein a relative sliding between the sensor toothing device (4) and the sensor toothing (15) of the steering rod (2) occurs in the engagement which is equal to or greater than the linear movement of the steering rod (2), and a sensor device (5) for determining the position of the steering rod (2) which is arranged to detect the position of the sensor toothing device (4) along the predetermined sensor stroke (15).

The invention relates to an electric steering system for a motor vehicle, the electric steering system comprising a Y-shaped steering rod (2), a servo unit which displaces the steering rod (2) by means of a ball screw drive, and a Y-shaped pressure element (3) which presses against the steering rod (2), wherein a pressure-element film (4) is arranged between the steering rod (2) and the pressure element (3), the pressure-element film enabling low-friction movement of the steering rod. At least two sensor modules (5), by means of which loads in the steering system can be detected, are arranged beneath the pressure-element film (4), thereby enabling the total steering-rod force to be determined.

A method and apparatus for detecting rack-rolling of a rack bar of a vehicle may perform operations including: determining whether an error related a rack bar connected to a steering motor occurs using at least one of a motor current of the steering motor for steering control of a vehicle or a rack force; detecting abnormal behavior of the vehicle based on a yaw rate and a lateral acceleration of the vehicle; and detecting rolling of the rack bar connected to the steering motor based on the determining of whether an error related to the rack bar occurs and the detecting of the abnormal behavior of the vehicle.

The application relates to the technical field of vehicles and discloses a vehicle, which comprises a frame assembly, a suspension assembly, a steering assembly and a front wheel, the suspension assembly comprises a lower swing arm, the lower swing arm is installed on the frame assembly; the steering assembly comprises a steering gear, a tie rod and a steering knuckle, the steering knuckle is installed on the lower swing arm, the steering knuckle has a rotation freedom degree relative to the lower swing arm, the steering gear is connected with the steering knuckle through the tie rod, and the steering gear comprises an output shaft; the front wheel is installed on the steering knuckle; wherein the vehicle comprises a straight running state and a steering state; when the vehicle is in the straight running state, the distance D between the axis of the output shaft and the axis of the front wheel in the front-rear direction of the vehicle satisfies 0mm<=D<=50mm. The output shaft of the steering gear is arranged near the axis of the front wheel, the tie rod is also arranged near the axis of the front wheel, the swing angle of the front wheel is prevented from being affected by the tie rod, the swing angle of the front wheel is increased, the turning radius of the vehicle is reduced, and the turning flexibility of the vehicle is improved.

A method of detecting rack rolling of a rack bar of a vehicle may provide a method and apparatus including: determining whether an error has occurred by using at least one of a rack force value and a motor current value of a steering motor for steering control of the vehicle; detecting an abnormal behavior of the vehicle by using the yaw velocity value and the lateral acceleration value of the vehicle; and detecting whether rack rolling occurs in a rack bar connected to the steering motor based on a result of determining whether an error occurs and a result of detecting the abnormal behavior.

A method and apparatus for detecting rack roll of a vehicle rack can perform operations that include: determining whether a fault is occurring with respect to a rack connected to a steering motor, using at least one motor current of the steering motor for steering control of a vehicle or a rack force; detecting abnormal behavior of the vehicle based on a yaw rate and a lateral acceleration of the vehicle; and detecting rack roll connected to the steering motor, based on determining whether a fault is occurring with respect to the rack and detecting the abnormal behavior of the vehicle.

The application discloses a vehicle, and belongs to the technical field of automobiles, which comprises a vehicle frame, a steering system and vehicle wheels; the steering system comprises a steering control mechanism, a steering gear assembly, a steering gear support, a transmission assembly, a steering linkage and a steering assist mechanism; wherein the steering gear support comprises a main mounting plate and connecting plates, the main mounting plate is arranged to extend along the front-rear direction of the vehicle, and the connecting plates extend to the left-right direction of the vehicle to be connected to the vehicle frame; the main mounting plate and the two connecting plates and the vehicle frame enclose an avoidance space; the steering gear assembly is installed on the side of the main mounting plate away from the avoidance space; the steering linkage comprises a steering rocker arm and a steering straight link, the steering rocker arm is arranged in the avoidance space, the first end of the steering rocker arm is connected to the steering gear assembly, the second end of the steering rocker arm is connected to the steering straight link, and the steering straight link is connected to the vehicle wheels; the application optimizes the spatial layout, is more compact in overall arrangement on the basis of ensuring transmission integrity, and improves the space utilization.