Patent classifications
B60G2500/40
CONTROL METHOD IN MOTOR GRADER AND MOTOR GRADER
A control method in a motor grader including a running wheel, an inclination mechanism which inclines the running wheel, an operation portion, and a sensor capable of detecting whether or not the running wheel is at an erect position includes outputting from a controller, a control signal for driving the inclination mechanism in response to an operation command in accordance with a state of operation onto the operation portion and stopping output of the control signal in response to the operation command when the sensor detects the erect position.
METHOD AND ADJUSTMENT SYSTEM FOR KEEPING A VEHICLE ON COURSE DURING ROLL MOVEMENTS OF A VEHICLE BODY
A method for keeping a vehicle on course by determining a lateral acceleration of the vehicle; establishing a desired lateral inclination of the vehicle depending on the lateral acceleration determined in step a); adjustment of at least one actuator of an active chassis device of the vehicle, so the vehicle takes on the desired lateral inclination determined in step b); and c) carrying out a compensatory engagement by adjustment of at least one actuator of an active chassis device of the vehicle, so the vehicle takes on the desired lateral inclination determined in step b), wherein, in step d), at least one additional compensatory engagement is carried out by an additional active chassis device for the at least partial compensation of a yaw movement of the vehicle caused by the adjustment of the at least one actuator of the active chassis device.
ELECTRIC DRIVE RIGID REAR AXLE ASSEMBLY WITH STABILITY CONTROL
A vehicle includes a body structure and a rear axle connecting two rear wheels and carried by two leaf spring units, each leaf spring unit being pivotably connected at one end to the body and at another end to a connection arm pivotably connected to the body structure, wherein the rear axle includes two driveshafts connecting the rear wheels. A drive unit is supported by the rear axle to be self-supporting relative to the body. The drive unit includes an electric motor coupled to at least one of the two drive shafts. A controller is configured to control the electric motor in response to lateral acceleration of the vehicle during cornering to deliver increased driving torque to an outer one of the two rear wheels relative to an inner one of the two rear wheels.
VEHICLE WITH RIGID REAR AXLE DIRECT ELECTRIC DRIVE
A vehicle includes a body, an internal combustion engine, a traction battery, a front axle connecting two front wheels with at least one of the two front wheels drivingly coupled to the internal combustion engine, a rear axle connecting two rear wheels and carried by two leaf spring units, each leaf spring unit being pivotably connected at one end to the body and at another end to a connection arm pivotably connected to the body, wherein the rear axle includes two driveshafts connecting the rear wheels, and a drive unit supported by the rear axle to be self-supporting relative to the body. The drive unit includes an electric motor coupled to the traction battery and a differential mechanically coupled to the two driveshafts and the electric motor. The rear axle is mechanically uncoupled from the internal combustion engine.
Vehicle yaw motion control method and apparatus using suspension
A control method includes calculating a roll angle and a roll angular velocity of a vehicle, setting damping forces applied to front and rear wheel dampers to execute first and second modes according to signs of the roll angle and roll angular velocity, and controlling the front and rear wheel dampers in consideration of the damping forces. Upon determination that the signs of the roll angle and the roll angular velocity are different, in the first mode, damping force greater than front wheel reference force and damping force smaller than rear wheel reference force are set to be applied to the front wheel dampers and the rear wheel dampers, respectively, and in the second mode, damping force smaller than the front wheel reference force and damping force greater than the rear wheel reference force are set to be applied to the front wheel dampers and the rear wheel dampers, respectively.
Steering system and vehicle equipped with same
Provided is a steering system capable of enhancing traveling stability when a vehicle drives straight and improving small-turn performance. The steering system includes: a first steering device; a second steering device including a mechanical section configured to individually steer each of left and right wheels by driving a steering actuator and a control section configured to control the steering actuator; and a vehicle information detection section configured to detect a velocity of the vehicle and a steering angle. The control section includes a turning angle control module configured to control the steering actuator pursuant to a predetermined rule in accordance with the velocity of the vehicle and the steering angle so as to control turning angles of the left and right wheels.
INDEPENDENT SUSPENSION SYSTEM WITH A HIGH STEERING ANGLE
A wheel suspension system (101) with at least one wheel support (103), first and second coupling rods (105, 107) and at least one track rod (109). The first and second coupling rods (105, 107) are connected to one another in an articulated manner. The second coupling rod (107) and the wheel support (103) are connected to one another in an articulated manner. The track rod (109) is designed to apply a steering torque to the first coupling rod (105). The steering torque is transmitted from the first coupling rod (105), via the second coupling rod (107), to the wheel support (103). The wheel suspension system has at least one suspension link (111) which is mounted, in an articulated manner, on a vehicle body or chassis and is articulated to the wheel support (103). The suspension link (111) and the first coupling rod (105) are articulated to one another.
Magnetorheological Bushing Steering System
A variable stiffness automotive suspension bushing (1) comprises a shaft or rod connected to a wheel member, an inner cylinder fixedly connected to the shaft or rod, and an outer cylinder fixedly connected to a chassis member. A magnetorheological (MR) elastomer, having iron particles embedded therein, is interposed between the inner and outer cylinders, and a coil is disposed about the inner cylinder. When the coil is energized by electrical current provided from a steering control module, a variable magnetic field is generated so as to influence the magnetorheological (MR) elastomer whereby variable stiffness values of the elastomer are obtained to provide the bushing (1) with variable stiffness characteristics in order to, in turn, provide the vehicle with optimal wheel deflection.
AUTOMATIC TILTING VEHICLE
An automatic tilting vehicle is provided that includes left and right wheels supported by knuckles, a vehicle tilting device, and a control unit. The vehicle tilting device includes a swing member, an actuator for swing the swing member, and a pair of tie rods pivotally attached to the swing member and the knuckles. When a tilt angle of the vehicle is equal to or less than an allowable maximum tilt angle, a pivot point of the pivotal attachment portion at the lower end of the turning outer tie rod is located inside the vehicle with respect to a line segment connecting a grounding point of the corresponding wheel and a pivot point of the pivotal attachment portion at the upper end of the same tie rod.
Vehicle handling dynamics control using fully active suspension
Arrangements (e.g., method, apparatus, computer-readable non-transitory media embodying a program) for compensating for understeer or oversteer behavior in a vehicle having a fully active suspension, including: determining whether an understeer or oversteer condition exists; determining a compensation torque needed to correct the understeer or oversteer condition; and generating the compensation torque by using the fully active suspension to shift tire loads between tires.