Patent application number | Description | Published |
20090043428 | Acceleration Sensation Evaluating Device and Vehicle Controller - The present invention provides an acceleration sensation evaluating device that evaluates a sensory acceleration of a driver with respect to an expectation value of acceleration, and a vehicle controller that controls a vehicle according to the evaluation results. The evaluation device detects an amount of operation of the vehicle by the driver of when the vehicle is accelerated, detects an amount of vehicle behavior, computes a physical quantity of an expectation value indicating the expectation value of an acceleration performance which the driver expects based on the detected values, computes a sensory physical quantity indicating a sensation of the acceleration which the driver senses, and computes an evaluation value of the acceleration sensation based on difference or ratio between the physical quantity of the expectation value and the sensory physical quantity. | 02-12-2009 |
20100198448 | VEHICLE BODY SPEED ESTIMATING DEVICE - A vehicle body speed estimating device. An attitude angle estimating mechanism estimates a roll angle and a pitch angle. A longitudinal speed computing mechanism computes longitudinal vehicle body speed. A vehicle body speed estimator estimates lateral vehicle body speed by using, as state amounts of vehicle motion, the longitudinal vehicle body speed and the lateral vehicle body speed, and on the basis of respective detected values of longitudinal acceleration, lateral acceleration and yaw angular velocity of vehicle motion, and respective estimated values of the roll angle and the pitch angle, and a product of a computed value of the longitudinal vehicle body speed and a value obtained from an absolute value of the detected value of the yaw angular velocity. | 08-05-2010 |
20100217527 | OBSTACLE AVOIDANCE CONTROL DEVICE AND RECORDING MEDIUM - An obstacle avoidance control device has a detector for detecting the distance between a vehicle and an obstacle and the relative speed of the vehicle with respect to the obstacle, a memory for storing a map for calculating vehicle generation force to avoid the obstacle based on a parameter set by a physical quantity determined by a component V | 08-26-2010 |
20110040464 | SENSOR DRIFT AMOUNT ESTIMATING DEVICE - On the basis of a sensor signal corresponding to a detected value of a motion state amount of vehicle motion, an attitude angle estimating means of a sensor drift amount estimating device computes a derivative amount of an attitude angle with respect to a vertical axis of a vehicle body, and integrates the computed derivative amount of the attitude angle, and estimates the attitude angle. On the basis of the sensor signal and the attitude angle estimated by the attitude angle estimating means, a computing means computes a derivative amount of the attitude angle obtained from equations of motion for vehicle motion. A drift amount estimating means estimates a sensor drift amount of the sensor signal by using a relationship that, when taking a sensor drift amount of the sensor signal into consideration, the derivative amount of the attitude angle computed by the attitude angle estimating means, and a value that considers a sensor drift amount in the derivative amount of the attitude angle computed by the computing means, are equal. | 02-17-2011 |
Patent application number | Description | Published |
20090063002 | VEHICLE MOTION CONTROL DEVICE AND CONTROL METHOD - A vehicle motion control device and method computes a size of a using friction circle in each of wheels by multiplying a size of an each wheel friction circle indicating a maximum generating force in each of the wheel tires by a previously computed each wheel using percentage, computes the each wheel tire generating force and the each wheel using percentage indicating a rate with respect to an upper limit value of a μ-using efficiency in each of the wheels, on the basis of a target vehicle body force and moment indicating a target vehicle body longitudinal force, a target vehicle body transverse force and a target yaw moment, and the computed size of the using friction circle, and controls a vehicle motion in such a manner that the computed each wheel tire generating force is obtained on the basis of the computed each wheel tire generating force, thereby minimizing an upper limit of the μ-using efficiency in each of the wheels. | 03-05-2009 |
20090192678 | VEHICLE, VEHICLE CONTROL DEVICE, AND VEHICLE MANUFACTURING METHOD - A shape of a visible edge of a vehicle hood, a shape of a visible edge of a vehicle instrument panel, or a shape of a top edge of a ceramic line formed at a windshield glass is made to be a curve expressed by hyperbolic function y | 07-30-2009 |
20100161180 | MOTOR-DRIVEN STEERING CONTROLLER AND AUTOMOBILE ANTI-SKID CONTROLLER - A motor-driven steering controller for controlling a steering wheel of a vehicle. The controller includes a steering torque controlling unit, a braking force estimating unit, a right and left braking force difference estimating unit and an assist steering torque providing unit. The steering torque controlling unit controls a steering torque on the steering wheel depending on a steering operation. The braking force estimating unit estimates braking forces to be imposed on wheels of the vehicle. The right and left braking force difference estimating unit estimates difference between the braking forces to be imposed on the right and left wheels each estimated by the braking forces estimating unit. The assist steering torque providing unit provides an assist steering torque for the steering torque controlling unit on the basis of the difference in braking force between right and left wheels estimated by the right and left braking force difference estimating unit. | 06-24-2010 |
20110241863 | DRIVER OPERATION PREDICTION DEVICE, METHOD, AND DRIVER OPERATION PREDICTION PROGRAM - A deviation angle, between a progression direction of a vehicle and a direction of a target destination point after a predetermined forward gaze duration on a target course the vehicle is travelling on, is detected by target destination point deviation angle detection unit. A yaw angular speed proportional to the deviation angle detected by the target destination point deviation angle detection unit is predicted by yaw angular speed prediction unit, as a yaw angular speed realized by steering wheel operation by a driver after a predetermined lag time for matching a timing of change in the vehicle movement with a timing of change in curvature of the target course. By so doing, the yaw angular speed due to steering wheel operation by a driver can be predicted with good precision. | 10-06-2011 |
20120173082 | STEERING APPARATUS - A steering apparatus that by effecting a predetermined relationship between a steering wheel angle and a yaw angular velocity generated for a vehicle makes a direction θ | 07-05-2012 |
20120245797 | STEERING APPARATUS, STEERING METHOD, AND COMPUTER READABLE STORAGE MEDIUM - A target value for yaw angle velocity gain is computed according to a map expressing a relationship between steering wheel angle and yaw angle velocity gain predetermined such that a direction as seen from a driver of a target destination point for vehicle travel at a predetermined time after a forward gaze and a direction as seen from the driver are caused to match each other, and a steering gear ratio is controlled accordingly. A target value for a steering wheel torque corresponding to the detected steering wheel angle and the acquired yaw angular velocity is set, based on a relationship between yaw angular velocity and resistance-feel level predetermined such that the resistance feel level for a driver monotonically increases with increasing yaw angular velocity. Control is then preformed so as to realize the steering wheel torque target value. | 09-27-2012 |
20140136056 | VEHICLE STEERING APPARATUS, METHOD AND NON-TRANSITORY COMPUTER READABLE MEDIUM - According to a relaxation length compensation torque computation section | 05-15-2014 |