39 results about "Countersteering" patented technology

A three-wheeled vehicle that includes: a single front wheel; two rear wheels; a passenger cabin; an electronic steering control unit; and a steering input device configured to send an electronic signal to the electronic steering control unit corresponding to an input received at the steering input device associated with turning the three-wheeled vehicle; wherein the electronic steering control unit is configured to counter-steer the front wheel in response to receiving the electronic signal, wherein the counter-steering of the front wheel initiates a leaning of the passenger cabin a direction of turning of the three-wheeled vehicle.

A vehicle-mounted display device comprises a display mounted to a shaft, and operable to revolve with the rotation of the shaft; a transmission mechanism for coupling an output shaft of a motor with the shaft; a control module for controlling the motor; a baffle plate located at any position that enables it to rotate in synchronism with the rotation of the display, and a detection module for detecting the baffle plate. During the rotation of the display, when the detecting module does not detect the baffle plate in a predetermined period of time, the control module causes the motor to stop running or to turn in a reverse direction. This vehicle-mounted display device not only is reliably operable and electronically controllable, but also has anti-clamping and self-protection functions and has a simple structure and low cost.

An electric steering device includes a steering retaining device arranged to retain a steering angle against an external steering force applied from outside of a watercraft to an outboard motor main body. A reverse input shutoff clutch, for example, is preferably used as the steering retaining device. A steering retaining state in which a steering angle of the outboard motor main body is retained can be detected from a steering condition of the outboard motor main body, and a control is made to stop electric power from being supplied to an electric motor steering the outboard motor main body. Accordingly, the steering retaining device retains a steering angle while steering is retained, and thus the electric power supply to the electric motor can be stopped, which allows electric power to be saved. The steering retaining device provides an electric steering device for a watercraft in which no electric power is required when applying a steering retaining force for retaining a counter-steering state.

The counter steer detecting method includes the steps of detecting a steering angle by a steering angle sensor, detecting a lateral acceleration by a lateral acceleration sensor, and determining counter steer according to the steering angle detected by the steering angle sensor and the lateral acceleration detected by the lateral acceleration sensor on the basis of a counter steer determination area table indicating whether or not the counter steer is on in relation to the combination of steering angle and lateral acceleration.

A remote-controlled toy motorcycle includes a chassis supported by oversized front and rear tires for increased stability, and a chassis-mounted rider figure having rotating members for contacting a ground surface to prevent excessive wear of the rider figure legs and also to allow the toy motorcycle to self-start from a leaning position. “Counter-steering” is simulated by actuating a steering servo to initially turn a front wheel from a straight original direction to a direction opposite the desired turn direction. The front wheel is held momentarily while the toy motorcycle destabilizes and leans in the turn direction. Then, the steering servo is automatically actuated to turn the front wheel in the desired turn direction.

The invention relates to a method and a device for transitioning a vehicle driving without activated lateral guidance assistance into a driving state having reduced risk of collision consequences in the event of an emergency of the driver, wherein the speed of the vehicle is greater than a threshold speed, wherein the following steps are performed: detecting a hands-off situation of the driver in a hands-off phase and outputting a hands-off warning, performing a warning escalation in an escalation phase if there is no response to the hands-off warning, and reducing the vehicle speed to a speed less than the threshold speed in an intervention phase if there is no response in the escalation phase. During the hands-off phase, the escalation phase, and the intervention phase, a returning torque is applied to the steering apparatus of the vehicle if it is detected that the vehicle is leaving the current lane.

The embodiment of the invention discloses an electric control rear wheel steering method, a device, electronic equipment and a storage medium. According to the method, the target driving mode of the target vehicle is determined to be a turning-in mode or a turning-out mode through the obtained steering wheel rotating angle and steering wheel rotating speed of the target vehicle, so that the driving intention of the vehicle is recognized, and then when the target driving mode of the target vehicle is the turning-in mode, rear wheels of the target vehicle are controlled to steer reversely; according to the method, the vehicle is helped to quickly avoid obstacles when the vehicle is in emergency avoidance, and the rear wheels of the target vehicle are controlled to steer in the same direction when the target driving mode of the target vehicle is the bend-out mode, so that the vehicle is helped to quickly recover to the original route after avoiding the obstacles, and the rear wheel steering control of the vehicle entering the bend and driving out of the bend is realized; therefore, the vehicle can enter the curve and exit from the curve more flexibly, and the safety and driving experience of the vehicle are improved.

The embodiment of the invention provides a vehicle obstacle avoidance method, electronic equipment and a storage medium, which are applied to the technical field of automatic driving, and the method comprises the following steps: obtaining driving information of a vehicle and obstacle information of an obstacle; according to the obstacle information, determining whether a target obstacle exists on the vehicle driving channel, and if yes, determining the safe steering direction without the obstacle in real time; sending a steering starting signal used for indicating the vehicle to steer towards the safe steering direction determined in real time to the vehicle; and determining the transverse offset of the vehicle in real time according to the driving information, and if the transverse offset is smaller than or equal to the preset offset, sending a reset steering signal used for indicating reverse steering of the vehicle to the vehicle. By applying the method provided by the embodiment of the invention, the safety degree of vehicle driving can be improved.

When the driver makes a counter-steer operation to steer back the steering wheel during the execution of an automatic oversteer suppress control by the turn behavior control device, the counter-steer of automatically decreasing the steering angle of the steered wheels and the counter-steering by the driver overlap to cause an excessive counter-steering. In order to avoid such a problem, when the driver makes a counter-steering operation while the turn behavior control device is executing the automatic decrease of the steering angle, the amount of automatic decrease of the steering angle is reduced according to the counter-steering operation by the driver.

A method of controlling implementation of a drift driving state of a vehicle, may include a slip inducement step, wherein in a state that drift mode is selected, when a vehicle enters into rotary driving and is in a power-on state, a controller reduces front wheel distribution torque of all-wheel drive (AWD) system in comparison to cases other than the drift mode; a slip torque control step, wherein when a rear wheel slip of the vehicle is generated, the controller allows the vehicle to enter into drifting by adding slip control torque according to lateral acceleration of the vehicle to the front wheel distribution torque; and a drift maintenance step, wherein when a counter steering state by a driver is confirmed, the controller maintains a drift driving state of the vehicle by releasing all the front wheel distribution torque.

When the driver makes a counter-steer operation to steer back the steering wheel during the execution of an automatic oversteer suppress control by the turn behavior control device, the counter-steer of automatically decreasing the steering angle of the steered wheels and the counter-steering by the driver overlap to cause an excessive counter-steering. In order to avoid such a problem, when the driver makes a counter-steering operation while the turn behavior control device is executing the automatic decrease of the steering angle, the amount of automatic decrease of the steering angle is reduced according to the counter-steering operation by the driver.

Flexibility in design of steering characteristics is enhanced in a leaning vehicle including two front steerable wheels. A vehicle includes a body frame, a left front wheel, a right front wheel, a rear wheel, a leaning mechanism, a steering mechanism, and a leaning-responsiveness-adjusting mechanism. The leaning mechanism includes arms rotatably supported by the body frame. The arms rotate with respect to the body frame so that the body frame leans. The steering mechanism mechanically transfers rotation of the handle to the left front wheel and the right front wheel. Accordingly, the body frame leans in the direction opposite to the rotation direction of the handle. The leaning-responsiveness-adjusting mechanism controls a motor by using an instruction value based on a time derivative value of a physical quantity generated by a motion of a rider affecting leaning of the body frame to thereby adjust responsiveness of leaning of the body frame.

The embodiment of the invention discloses a fan control method, device and system, which are used to realize the speed regulation and steering control of a four-wire forward and reverse fan interfaced with a conventional four-wire fan through a PWM control bus. The method in the embodiment of the present invention includes: receiving the first fan regulation signal sent by the system control module, converting the first fan regulation signal into a forward steering control signal according to the duty ratio interval of the first fan regulation signal and the current steering direction of the fan, Reversing the steering control signal or switching the steering control signal, and sending the converted control signal to the fan drive module, so that the fan drive module drives the fan to run according to the converted control signal.

According to the calculation method and device for the turning radius of the reverse steering vehicle with the rear wheels, the turning radius of the front wheels of the vehicle during reverse steering without the rear wheels is determined through the turning angle of the front wheels of the vehicle and the size parameters of the front wheels; based on the rear wheel turning angle of the vehicle and the front wheel turning radius of the vehicle when no rear wheel is in reverse steering, the front wheel turning radius of the vehicle when the rear wheel is in reverse steering is determined, and the turning radius of the vehicle after the front wheel turning and the rear wheel turning are fused can be effectively calculated under the condition that actual measurement is not executed; the present invention can be used in a turning radius calculation program and a recording medium for a computer to implement the calculation method for reverse steering with rear wheels.

The counter steer detecting method includes the steps of detecting a steering angle by a steering angle sensor, detecting a lateral acceleration by a lateral acceleration sensor, and determining counter steer according to the steering angle detected by the steering angle sensor and the lateral acceleration detected by the lateral acceleration sensor on the basis of a counter steer determination area table indicating whether or not the counter steer is on in relation to the combination of steering angle and lateral acceleration.

A driving force transmission controller includes: a normal turning control unit that computes command values such that driving force transmitted to an outer wheel in a turning direction is larger than that transmitted to an inner wheel during normal turning; a counter-steering control unit that computes the command values such that the driving force transmitted to the outer wheel is larger than that transmitted to the inner wheel during counter-steering; a counter-steering return control unit that corrects the command values such that a rate of change in each of the driving forces transmitted to the right and left rear wheels is lower than a rate of change in a steered angle of front wheels when a steering velocity is equal to or higher than a prescribed value during the counter-steering; and a driving force transmission control unit that controls a driving force transmission device based on the command values.

The invention discloses a backward steering device for propelling and direction control in water. The backward steering device comprises a water spraying propeller, at least two rudders and shift devices, wherein the rudders are respectively arranged on the outer sides of a water spraying opening of the water spraying propeller and used for changing the flow direction of water sprayed by the water spraying propeller; the shift devices are respectively connected with the rudders and used for driving the rudders to deviate from and return to the outer sides of the water spraying opening of the water spraying propeller; one of the water spraying propellers is arranged, and correspondingly a pair of the rudders is arranged and relatively distributed on two sides of a vertical axle wire of the water spraying opening. According to the backward steering device for the propelling and the direction control in water, disclosed by the invention, during the rudders are reduced, a left turn function, a right turn function, a left turn in situ function, a right turn in situ function and a drawing back function can also be realized, so that parts and components are greatly reduced, besides the size is reduced, the weight is lightened, the speed is accelerated, the routine maintenance is convenient, and the related cost is relatively lower.

A steering feel control apparatus of an MDPS may include: a release steering detection unit configured to detect release steering using column torque or motor current; a reverse steering detection unit configured to detect reverse steering using a steering angular velocity or motor angular velocity; a compensation gain detection unit configured to detect a compensation gain using the steering angular velocity or the motor angular velocity; a high frequency input unit configured to filter the column torque or the motor current and input a high frequency; and a compensation gain compensation unit configured to apply the compensation gain detected by the compensation gain detection unit to the high frequency inputted by the high frequency input unit, when release steering is detected by the release steering detection unit or reverse steering is detected by the reverse steering detection unit.

A method of controlling implementation of a drift driving state of a vehicle, may include a slip inducement step, wherein in a state that drift mode is selected, when a vehicle enters into rotary driving and is in a power-on state, a controller reduces front wheel distribution torque of all-wheel drive (AWD) system in comparison to cases other than the drift mode; a slip torque control step, wherein when a rear wheel slip of the vehicle is generated, the controller allows the vehicle to enter into drifting by adding slip control torque according to lateral acceleration of the vehicle to the front wheel distribution torque; and a drift maintenance step, wherein when a counter steering state by a driver is confirmed, the controller maintains a drift driving state of the vehicle by releasing all the front wheel distribution torque.

A brake noise at stationary steering is prevented while brake hold being in operation, in automated steering with parking assist control. An automated-parking control unit includes: an environment recognizer to recognize environment of a vehicle; a behavior controller to execute behavior control inclusive of steering and acceleration / deceleration, based on recognized information; a brake hold instructor to suspend the vehicle with the behavior control and hold the vehicle suspended until receiving behavior-related operation by a driver; an automated-parking controller to set a reverse-steering position, based on a current position of the vehicle and a desired parking position decided by the driver, between the current position and the desired parking position, move the vehicle from the current position to the reverse-steering position, and execute stationary steering at the reverse-steering position; and a brake fluid pressure controller to increase a brake fluid pressure when stationary steering is executed at the reverse-steering position.

The invention discloses a reverse steering device for propulsion and direction control in water, which includes a water jet propeller. There are at least two rudders for the water flow direction ejected by the water propeller; the shifting device is connected with the rudders and is used to drive the rudders to deviate from or return to the outside of the water nozzle of the water propeller. The water jet propeller is set as one; the rudder is set as a pair, and are relatively distributed on both sides of the vertical central axis of the water jet. Adopting the reverse steering device for underwater propulsion and direction control described in the present invention can still realize the functions of turning left, turning right, turning left in situ, turning in situ right and retreating while reducing the number of steering rudders, thereby The components are greatly reduced, while the volume is reduced, the weight is reduced, the speed is increased, the daily maintenance is convenient, and the related costs are relatively lower.

The present invention relates to a steer-by-wire steering device comprising: a slide bar that slides in an axial direction by a motor; a housing that accommodates the slide bar; and a damper formed in a ring shape and including a first support portion coupled to an inner circumferential surface of the housing and supported by the inner circumferential surface of the housing in a circumferential direction, and a second support portion coupled to the slide bar and supported by the slide bar in the circumferential direction. According to the embodiment, the number of parts is reduced by removing parts such as a pinion and a support yoke, and the shape and assembly process of the parts are simplified, so that the cost is reduced, the operation noise caused by friction between gears and the noise caused by reverse steering are reduced, the noise performance is improved, the friction during driving is reduced, and the durability of the parts is improved.

A steering system for steering a heavy haul trailer dolly comprising a turntable mounted on the dolly for connecting to another trailer unit. The dolly comprising a main frame, a wheel group mounted to the main frame, and a pivot frame mounted to the main frame between the turntable and the wheel group. A counter-steering linkage connects the pivot frame and the turntable. Hydraulic cylinders connect the pivot frame and the wheel group. To automatically steer the dolly, the hydraulic cylinders are locked in length. Rotation of the turntable in one direction causes the pivot frame and the wheel group to rotate in the opposite direction. To steer the dolly directly, the hydraulic cylinders are operated to extend and retract, pushing and pulling against the pivot frame and turntable to rotate the wheel group.

A steering feel control apparatus of an MDPS may include: a release steering detection unit configured to detect release steering using column torque or motor current; a reverse steering detection unit configured to detect reverse steering using a steering angular velocity or motor angular velocity; a compensation gain detection unit configured to detect a compensation gain using the steering angular velocity or the motor angular velocity; a high frequency input unit configured to filter the column torque or the motor current and input a high frequency; and a compensation gain compensation unit configured to apply the compensation gain detected by the compensation gain detection unit to the high frequency inputted by the high frequency input unit, when release steering is detected by the release steering detection unit or reverse steering is detected by the reverse steering detection unit.

According to the present embodiments, it is possible to reduce components, e.g., pinion and support yoke, save costs by simplifying the shape and assembly process, reduce operation and reverse steering noise due to inter-gear friction, and driving friction, and enhance durability.