A steering system for a vehicle is provided. The steering system includes a mechanical interface coupled to an auxiliary hydraulic steering pump and an output of a transmission. In the system, the transmission is mechanically coupled to a motive power source and the auxiliary hydraulic steering pump is hydraulically coupled to a hydraulic steering assembly.

A steering system for a vehicle is provided. The steering system includes a mechanical interface coupled to an auxiliary hydraulic steering pump and an output of a transmission. In the system, the transmission is mechanically coupled to a motive power source and the auxiliary hydraulic steering pump is hydraulically coupled to a hydraulic steering assembly.

The present invention discloses a drive-by-wire electro-hydraulic steering system based on a double-winding motor and a hybrid control method. The steering system includes a steering wheel (1), a steering column assembly, a road sense assembly, an electro-hydraulic power-assisted module, a double-winding motor power-assisted module (28), a steering control unit, an electromagnetic clutch (8), a steering tie rod (17), a steering trapezoid (13) and steering wheels (12). The steering system can be switched among various steering work modes according to work conditions of a vehicle, meets steering requirements under various work conditions, uses a work mode that two sets of windings of the double-winding motor work at the same time, and has a motor winding redundancy function. When one set of windings fails, the other set of windings can drive the motor to provide power-assisted torque.

The present invention discloses a drive-by-wire electro-hydraulic steering system based on a double-winding motor and a hybrid control method. The steering system includes a steering wheel (1), a steering column assembly, a road sense assembly, an electro-hydraulic power-assisted module, a double-winding motor power-assisted module (28), a steering control unit, an electromagnetic clutch (8), a steering tie rod (17), a steering trapezoid (13) and steering wheels (12). The steering system can be switched among various steering work modes according to work conditions of a vehicle, meets steering requirements under various work conditions, uses a work mode that two sets of windings of the double-winding motor work at the same time, and has a motor winding redundancy function. When one set of windings fails, the other set of windings can drive the motor to provide power-assisted torque.

A control device and a method for enabling power steering of a vehicle in case of unintentional shutdown of a combustion engine of the vehicle are provided. The vehicle comprises, in addition to the combustion engine, a starter configured to crank the combustion engine and a hydraulic power steering system comprising a hydraulic pump configured to be driven by the combustion engine. The method comprises a step of, in response to an indication of need of power steering, activating the starter to crank the combustion engine so that the combustion engine drives the hydraulic pump. A computer program, a computer-readable medium and a vehicle are also provided.

A control device and a method for enabling power steering of a vehicle in case of unintentional shutdown of a combustion engine of the vehicle are provided. The vehicle comprises, in addition to the combustion engine, a starter configured to crank the combustion engine and a hydraulic power steering system comprising a hydraulic pump configured to be driven by the combustion engine. The method comprises a step of, in response to an indication of need of power steering, activating the starter to crank the combustion engine so that the combustion engine drives the hydraulic pump. A computer program, a computer-readable medium and a vehicle are also provided.

A vehicle steering assembly that includes a housing, a pinion shaft, a seal, a protector and a dust cover. The housing defines a bore with the pinion shaft extending therethrough. The seal is disposed within the bore spaced apart from the end of the housing. The seal extends around the pinion shaft creating a seal therebetween. The housing and the pinion shaft define an annular space therebetween and between an opening at one end of the housing and the seal. The protector is fitted to the housing covering a portion of the opening and the annular space. The protector has a shaft receiving opening with the pinion shaft extending therethrough and out of the housing. The dust cover is attached to the housing completely covering the protector and the opening of the bore.

A vehicle steering assembly that includes a housing, a pinion shaft, a seal, a protector and a dust cover. The housing defines a bore with the pinion shaft extending therethrough. The seal is disposed within the bore spaced apart from the end of the housing. The seal extends around the pinion shaft creating a seal therebetween. The housing and the pinion shaft define an annular space therebetween and between an opening at one end of the housing and the seal. The protector is fitted to the housing covering a portion of the opening and the annular space. The protector has a shaft receiving opening with the pinion shaft extending therethrough and out of the housing. The dust cover is attached to the housing completely covering the protector and the opening of the bore.

A pilot neutralizing system of a work vehicle may include a pilot neutralizer. The work vehicle may include a first frame portion and a second frame portion. The work vehicle has an actuating assembly used to pivot the first frame portion relative to the second frame portion. The pilot neutralizer is electrically coupled to a controller receiving a signal indicative of an articulation position. The pilot neutralizer is hydraulically coupled between an operator control member and a steering valve to selectively change a pilot signal at the steering valve. The pilot signal is used to switch the steering valve to change a direction of a hydraulic fluid flowing from the steering valve to the actuating assembly. When the articulation position reaches a cushion region during steering, the pilot neutralizer is de-energized or energized by the controller to change the pilot signal at the steering valve to resist the actuating assembly from moving.

A method for detecting a malfunction in a hydraulic-assisted steering system for a vehicle includes: measuring a steering torque; determining the steering torque exceeding a threshold torque for a predetermined length of time; and generating a malfunction signal in response to the determining the steering torque exceeding the threshold torque for the predetermined length of time. A system for detecting a malfunction in a hydraulic-assisted steering system for a vehicle includes a torque sensor configured to measure a steering torque, and a controller configured to: determine the steering torque exceeding a threshold torque for a predetermined length of time; and generate a malfunction signal in response to determining the steering torque exceeding the threshold torque for the predetermined length of time.