Masaki Fujimoto
Masaki Fujimoto, Toyota-Shi JP
Patent application number | Description | Published |
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20110098887 | ELECTRIC POWER STEERING DEVICE - An Assist Control Unit | 04-28-2011 |
20110272205 | ELECTRIC POWER STEERING DEVICE - An electric power steering device for a vehicle includes an estimation mechanism estimating if there is a possibility that a backward electric current flows in a booster circuit toward a vehicle battery device, and a boosting controller stopping the boosting operation of the booster circuit to prevent a backward electric current from flowing in the booster circuit when it is estimated that there is a possibility that a backward electric current flows by the estimation mechanism. The estimation mechanism estimates that there is a possibility that a backward electric current flows in the booster circuit when the steering condition of a steering wheel is a returning condition or a steering-held condition. Otherwise, the estimation mechanism estimates if a backward electric current flows on the basis of input and output voltages of the booster circuit and information on the switching of a first boosting switching element. Thereby, overheat of the booster circuit can be prevented. | 11-10-2011 |
20120197493 | ELECTRIC POWER STEERING APPARATUS FOR VEHICLE - A steering angle estimation section calculates a front-wheel-side estimative steering angle and a rear-wheel-side estimative steering angle through use of wheel speeds of respective wheels, and averages these steering angles to thereby obtain an accurate estimative steering angle. It also calculates an estimative steering angle difference between the steering angles. An axial force estimation section calculates a base axial force through use of the estimative steering angle and a vehicle speed, and calculates a correction axial force which applies an axial force difference (hysteresis) to the base axial force in accordance with a turning or returning operation by a driver. The axial force estimation section adds the base axial force and the correction axial force together to thereby calculate an accurate estimative axial force. An assist computation section compares a target steering torque, which changes with the vehicle speed, and the accurate estimative axial force, and subtracts the target steering torque from the estimative axial force, to thereby calculate an assist torque. | 08-02-2012 |
Masaki Fujimoto, Aichi-Ken JP
Patent application number | Description | Published |
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20080271942 | Power Steering System - A power steering system, which is disposed in the forward part of a vehicle, allows an electric motor to boost the steering torque applied by a driver, and transmits the steering torque to wheels via a steering transmission mechanism. The power steering system includes an impact detection device that detects the impact of an object on a rack housing that houses a rack bar constituting the steering transmission mechanism to detect the impact on the power steering system more accurately. | 11-06-2008 |
20100175491 | VEHICULAR STEERING DEVICE - In a center-takeoff-type steering apparatus for a vehicle, radiant heat from a heat source such as an engine is shut off reliably. The bracket is fixed to a central portion of a rack bar for unitary movement, the rack bar moving in the lateral direction in accordance with a steering operation of a steering wheel. Ball joint mechanisms are assembled to the bracket. The ball joint mechanisms rotatably support the inboard ends of the tie rods, swing tie rods in accordance with the movement of the rack bar to thereby steer the left and right front wheels. The heat insulator is integrally formed to have an upper plate portion and a lower plate portion facing each other, and fixed to the bracket so as to cover the ball joint mechanisms. | 07-15-2010 |
Masaki Fujimoto, Tsu-Shi JP
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20080242135 | CONNECTOR RECEPTACLE - In a connector receptacle ( | 10-02-2008 |
Masaki Fujimoto, Hino-Shi JP
Patent application number | Description | Published |
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20110210825 | MOBILE TERMINAL DEVICE, PROGRAM STORAGE MEDIUM, AND INFORMATION DISPLAYING METHOD FOR DISPLAYING INFORMATION FOR USER IN DISPLAY AREA PART NOT COVERED WITH RFID TAG - There is provided a mobile terminal device designed to perform wireless communication with an RFID tag being held over the device by using electromagnetic waves. The device includes a plurality of antennae arranged in or in vicinity to a display area of the mobile terminal device, and a control unit configured to detect a part of the display area, which is not covered with the RFID tag, from electromagnetic wave intensities acquired by the plurality of antennae and to display information for a user in the detected part of the display area. | 09-01-2011 |
Masaki Fujimoto, Susono-Shi JP
Patent application number | Description | Published |
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20140012469 | VEHICLE INFORMATION PROCESSING DEVICE - A vehicle information processing device mounted on a vehicle includes a future position calculating unit configured to calculate a future position of the vehicle based on steering input information corresponding to a steering input, a vehicle state amount that prescribes a turning state, and a vehicle speed, and an estimating unit configured to estimate a turning curvature of the vehicle at a provisional travel position ahead of a present position based on at least three vehicle positions according to the vehicle including at least the one calculated future position as well as including a vehicle position corresponding to the present position of the vehicle. As a result, a turning curvature of the vehicle at a vehicle position ahead of a present position can be estimated by a simple configuration and further the estimated turning curvature can be preferably used to stabilize vehicle behavior. | 01-09-2014 |
Masaki Fujimoto, Mie JP
Patent application number | Description | Published |
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20140378007 | CONNECTOR, AND HEADER AND SOCKET TO BE USED IN THE SAME - A connector includes: a socket having a rectangular socket fitting body provided with socket terminals; and a header having a rectangular header fitting body provided with header terminals. An opposite surface is provided at a portion of a sidewall surface on the outer side of the header fitting body that correspond to a protrusion in the longitudinal direction and is different from the portion where the header terminals are provided, the opposite surface facing at least one of both side surfaces of the corresponding protrusion in the width direction with the socket fitting body and the header fitting body fitted to each other. | 12-25-2014 |