摘要:
In a power steering apparatus employing an EPS (electrical power steering) motor coupled to a steering mechanism, when vibration of the steering mechanism is produced by twisting of tire rubber due to changes in steering angle, resultant pulsation of the drive current of the EPS motor are suppressed by adding to the drive current a current that is of equal frequency and opposite phase to the pulsation. Vibration of the EPS motor shaft, and resultant vibration of the steering wheel and vehicle body, are thereby effectively suppressed.
摘要:
In a driving condition control system, a sensing unit senses a first physical quantity indicative of a rotation of the first rotatable axle assembly and a second physical quantity indicative of a rotation of the second rotatable axle assembly. A determining unit compares the first and second physical quantities of the rotations of the first and second rotational axle assemblies and determines whether a driving condition of the vehicle is unstable according to the compared result. As a result, the unstable condition of the vehicle can be rapidly detected without detecting a yaw moment of the vehicle.
摘要:
A vehicle integration control system includes a manager controller and a driving system controller. The manager controller sets a target generation driving force guide value for a driving force outputted from a driving system of a vehicle. The driving system controller controls the driving force on the basis of the target generation driving force guide value. The manager controller includes a driver request value setter and a driving force corrector. The driver request value setter sets a driver request generation driving force value corresponding to the driving force outputted from the driving system on the basis of a driver's input. The driving force corrector corrects the driver request generation driving force value on the basis of a predetermined program to restrain vibration generated in the vehicle when the driving force outputted from the driving system.
摘要:
In a driving condition control system, a sensing unit is configured to sense a first physical quantity indicative of a rotation of the first rotatable axle assembly and a second physical quantity indicative of a rotation of the second rotatable axle assembly. A correcting unit is configured to correct the torque according to the sensed first and second physical quantities of the rotations of the first and second rotational axle assemblies. This allows the torque to be precisely obtained.
摘要:
In a power steering apparatus employing an EPS (electrical power steering) motor coupled to a steering mechanism, when vibration of the steering mechanism is produced by twisting of tire rubber due to changes in steering angle, resultant pulsation of the drive current of the EPS motor are suppressed by adding to the drive current a current that is of equal frequency and opposite phase to the pulsation. Vibration of the EPS motor shaft, and resultant vibration of the steering wheel and vehicle body, are thereby effectively suppressed.
摘要:
In a control system, a first estimator estimates, as a first controlled force, a force being applied to a controlled object. A second estimator estimates, as a second controlled force, a force being transferred to the controlled object. An external force estimator estimates, as an external force, a force being exerted on the vehicle as the vehicle runs. A dynamics estimator estimates, based on the first controlled force, the second controlled force, and the external force, a value of a parameter that represents the dynamics of the controlled object. A compensator compensates for at least one of the first controlled force and the second controlled force such that the value of the parameter is within a preset target range.
摘要:
In a control system, a first estimator estimates, as a first controlled force, a force being applied to a controlled object. A second estimator estimates, as a second controlled force, a force being transferred to the controlled object. An external force estimator estimates, as an external force, a force being exerted on the vehicle as the vehicle runs. A dynamics estimator estimates, based on the first controlled force, the second controlled force, and the external force, a value of a parameter that represents the dynamics of the controlled object. A compensator compensates for at least one of the first controlled force and the second controlled force such that the value of the parameter is within a preset target range.
摘要:
An object of the present invention is to execute an optimum control of vibrations due to a driver's operation of an accelerator pedal, steering wheel and brake pedal. The operation instructions are inputted into a vibration calculating means (kinetic model) comprising a vehicle body model, suspension model and tire model. Conventional kinetic model controlled the suspension in order to suppress the vehicle body vibration. However, in the kinetic model of the present invention, the tire vibration due to a change in the engine output is first absorbed by the suspension, whereby a residual vibration which was not be absorbed yet by the suspension is transferred to the vehicle body. The operation inputs are compensated by the three feed-back loops between the outputs of the above-mentioned three portions and input of the tire portion, giving the highest priority on the vehicle body model.
摘要:
A vehicle integration control system includes a manager controller and a driving system controller. The manager controller sets a target generation driving force guide value for a driving force outputted from a driving system of a vehicle. The driving system controller controls the driving force on the basis of the target generation driving force guide value. The manager controller includes a driver request value setter and a driving force corrector. The driver request value setter sets a driver request generation driving force value corresponding to the driving force outputted from the driving system on the basis of a driver's input. The driving force corrector corrects the driver request generation driving force value on the basis of a predetermined program to restrain vibration generated in the vehicle when the driving force outputted from the driving system.
摘要:
An object of the present invention is to execute an optimum control of vibrations due to a driver's operation of an accelerator pedal, steering wheel and brake pedal. The operation instructions are inputted into a vibration calculating means (kinetic model) comprising a vehicle body model, suspension model and tire model. Conventional kinetic model controlled the suspension in order to suppress the vehicle body vibration. However, in the kinetic model of the present invention, the tire vibration due to a change in the engine output is first absorbed by the suspension, whereby a residual vibration which was not be absorbed yet by the suspension is transferred to the vehicle body. The operation inputs are compensated by the three feed-back loops between the outputs of the above-mentioned three portions and input of the tire portion, giving the highest priority on the vehicle body model.