Abstract:
PROBLEM TO BE SOLVED: To realize highly accurate sprung vibration damping control.SOLUTION: A sprung vibration damping control device of a vehicle restrains sprung vibration generated in a vehicle body of the vehicle provided with first and second motor-generators 31 and 32 as a driving source, and comprises sprung vibration damping control amount arithmetic operation means 5 for setting a sprung vibration damping control amount for restraining the sprung vibration and motor-generator control means 6 for executing sprung vibration damping control by controlling a motor-generator control amount of the second motor-generator 32 so as to realize its sprung vibration damping control amount, and limits the sprung vibration damping control by the second motor-generator 32 by prohibiting the sprung vibration damping control or reducing the sprung vibration damping control amount by the second motor-generator 32, when the motor generator control amount is a value in the same as a voltage boosting switching determining threshold value of system voltage of an inverter 42 or near to this.
Abstract:
PROBLEM TO BE SOLVED: To provide a sprung mass damping control system of a vehicle, which suppresses sprung mass vibration with high accuracy. SOLUTION: The sprung mass damping control system of a vehicle, suppresses sprung mass vibration generated in a vehicle body of a vehicle provided with at least a motor-generator (first and second motor-generators 31, 32) as a drive source. The system includes: a sprung mass damping control amount calculating device 5 that sets a sprung mass damping control amount for suppressing the sprung mass vibration, and a drive source control device (a motor-generator control device 6) that executes sprung mass damping control by controlling a motor-generator control amount of the motor-generator to achieve the sprung mass damping control amount. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To restrain the influence of a decrease in the accuracy of vibration damping control during execution of vehicle height control, in the vibration damping control being designed to restrain pitch-bounce vibration through wheel torque control for a vehicle having a suspension whose elastic modulus is variably controlled. SOLUTION: A drive control device includes a compensation component determining unit for calculating a compensation component for compensating wheel torque in such a way as to reduce the vibration displacement of a body predicted using a body vibration model, and a vehicle height value obtaining unit for obtaining a value that represents the height of the vehicle. The configuration of the compensation component determining unit is changed as a value representing the elastic modulus of the suspension or the vehicle height is varied. A change to the configuration of the compensation component determining unit is achieved either by updating a model parameter or by shutting off or reducing the output of the compensation component. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a grille shutter apparatus in which a front grille is smoothly moved in a rearward direction when a collision of a vehicle occurs.SOLUTION: The grille shutter apparatus 10 includes: a shutter mechanism 11 arranged in an grille opening part 7 to control a flow rate of air flowing from the grille opening part 7; and a frame 13 supporting the shutter mechanism 11 in the grille opening part 7. The frame 13 is fixed to a bumper reinforcement 12, which has a fixing part F formed in the upper frame part 14 corresponding to the upper end thereof. Protruding parts 26 are arranged at side frame parts 24, 25 of the frame 13 to protrude from the side frame parts 24, 25 in a forward direction. When the front grille 9 is moved in the rearward direction due to the occurrence of the collision of the vehicle, a rotational moment about the supporting points corresponding to the fixing parts F generates in the frame 13 by the front grille 9 brought in contact with the protruding part 26.
Abstract:
PROBLEM TO BE SOLVED: To provide a damping control device, a damping control method, and a damping control program for reducing vehicle vibration even during towing when controlling the damping of vehicle vibration. SOLUTION: In the damping control device for reducing the vibration of a vehicle by controlling driving/braking force, a towing determination part 59 determines whether or not a vehicle is in a towing state on the basis of an ON/OFF signal to be input from a towing switch SW40, and when it is determined that the vehicle is in the towing state, pitch/bounce damping control is suppressed or stopped. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To modify the way of vibration damping control in response to whether a roof is opened or closed, in the vibration damping control using wheel torque control that is executed for a vehicle whose roof is openable or detachable, and to reduce or exclude the influence of deterioration in the accuracy of the vibration damping control. SOLUTION: A drive control device includes a compensation component determining unit for calculating a compensation component for compensating wheel torque in such a manner as to reduce the vibration displacement of a vehicle body that is predicted using the vehicle's body vibration model. The magnitude of the amplitude of the compensation component is varied in response to whether the roof is opened or closed. The magnitude of the amplitude of the compensation component may be changed by adjusting the control gain of the compensation component when the compensation component is imparted to a wheel torque control means, if the opened or closed state of the roof, set using the body vibration model, is different from the actual opened or closed state of the roof. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To keep inappropriate vibration-damping control from being executed when a brake control device for a vehicle is inoperable, in a pitching/bouncing vibration-damping control device for a vehicle that is based on drive output control using a quantity of state of wheel slip indicating the slipped state of wheels obtained by the brake control device. SOLUTION: The vibration-damping control device for a vehicle obtains a quantity of state of wheel slip from the brake control device and corrects the controlled variable of drive torque based on the degree of slip that the quantity of state of wheel slip indicates. When the brake control device is inoperable, the controlled variable of drive torque is made lower than if the brake control device is operable. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To achieve a good vibration-damping effect from vibration damping control that is based on wheel torque control executed on a vehicle whose roof is openable or detachable, whenever the roof is opened or closed. SOLUTION: A drive control device includes a compensation component determining unit for calculating a compensation component for compensating wheel torque in such a manner as to reduce the vibration displacement of a body predicted using the vehicle's body vibration model. The configuration of the body vibration model is changed in response to whether the roof is opened or closed. Typically, a change to the configuration of the body vibration model may be a change corresponding to a change in the center of gravity of the body vibration model and/or in the pitch inertia moment of the vehicle. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a vehicle control device that can decrease the influence by the sprung vibration suppression control in execution of the drive system parts protection control.SOLUTION: A vehicle control device includes: a sprung mass damping control part 21 to control sprung mass vibration of a vehicle by controlling the output to the driving source for traveling; a driving system part protection control part 22 that protects the driving system part of the vehicle based on output of the driving source for traveling; and a bad road determination part 25 that determines whether the road surface where the vehicle travels is a bad road or not. When the bad road determination part 25 determine that the road surface is a bad road, the sprung mass damping control part 21 reduces output control amount to the driving source for traveling.
Abstract:
PROBLEM TO BE SOLVED: To manage change of characteristics, such as abrasion of a movable part of a throttle valve of an engine, to prevent excessive change, in damping control using drive output control. SOLUTION: A damping control device that controls driving power of a vehicle to reduce pitch or bounce vibration includes: a damping control part that controls a driving torque of an engine to suppress the amplitude of the pitch or the bounce vibration on the basis of a wheel torque generated at a contact portion between a wheel of the vehicle and a road surface; and a compensating component regulating part that varies the magnitude of a compensating component, which is calculated by a damping control part to compensate the wheel torque for damping control, on the basis of a change of characteristic such as a wear amount of a movable part of a throttle valve of the engine, and has a function to prevent the characteristics of the throttle valve movable part from being excessively changed. There is also provided a new configuration for estimating during traveling of the vehicle, a change state of the characteristics of a throttle valve movable part. COPYRIGHT: (C)2011,JPO&INPIT