Toyo Denso Kabushiki Kaisha

Takayuki Otani

Shoji Kishi

Toshiya Yoshida

Toshikazu Murata

A position sensor according to the present invention includes: a magnet configured to move together with a moving body and generate a first magnetic flux along a specific movement direction of the moving body and a second magnetic flux along the opposite direction to the specific movement direction of the moving body; and a sensor configured to detect the direction of the first magnetic flux and the direction of the second magnetic flux. The magnet is configured by at least one magnet having at least two pairs of magnetic poles to be paired formed thereon.

Position sensor and position detection method

An accelerator position sensor according to the present invention is held inside a throttle grip of a vehicle rotationally operated by a driver. The accelerator position sensor includes: a magnet extended along a rotation axis of the throttle grip and configured to rotate in conjunction with the throttle grip; a magnetic detection unit arranged so as to face a predetermined face of the magnet; and a magnetic body arranged so as to face another face that is different from the predetermined face of the magnet. On the predetermined face and the other face of the magnet, respectively, mutually different numbers of magnetic poles are magnetized along a rotation direction of the magnet.

Accelerator position sensor

A position sensor of the present invention includes: a magnet that moves together with a moving body; a magnetic sensor that detects a magnetic flux generated by the magnet; and a detector that detects an anomaly of the magnetic sensor based on a detection value detected by the magnetic sensor. The magnetic sensor is set so as to detect the detection value taking a value on a locus preset in accordance with a position of the moving body, and the locus is set so that a change rate of the detection value corresponding to change of the position of the moving body differs for each of a plurality of sections set within a movement range of the moving body. The detector detects the anomaly of the magnetic sensor based on a relation between the detection value and a comparison value that is a value corresponding to the locus.

A bar end mounting structure in a handle which is capable of improving the ease of maintenance of a bar end. A handlebar with a hollow shape has an L-shaped groove. The L-shaped groove is comprised of a first groove portion, which is formed in a longitudinal direction of the handlebar in a manner extending from an opening end, and a second groove portion, which is formed in substantially a circumferential direction of the handlebar and is contiguous to the first groove portion. The bar end and the screw support unit are fixed to the handlebar by screwing the screw into the screw support unit in a state in which the projecting portion of the screw support unit is in engagement with the second groove portion.

Bar end mounting structure in handle of vehicle

Provided is a throttle grip device that can stably generate an operation feeling and achieves downsizing itself. A throttle grip device includes a throttle grip attached to a handlebar, an accelerator position sensor, and a return spring. The accelerator position sensor and the return spring are accommodated inside the handlebar so as to be arranged tandemly along a straight line. The accelerator position sensor includes a cylindrical inner rotor in which a plurality of magnetic poles is magnetized along a circumferential direction, a magnetic material-made outer case configured to accommodate the inner rotor, and a sensor IC disposed facing a sensor side end of the inner rotor and offset from a central axis of the inner rotor. The inner rotor rotates in conjunction with the throttle grip.

Growing community of inventors

Saitama, Japan

Takayuki Otani