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US 11,131,592 B2Granted
Motor unit and vehicle
AssigneeHonda Motor Co., Ltd.
InventorsYosuke Tanaka, Yutaka Arimura, Daisuke Hoshino, Tatsuya Ohzu, Shingo Soma
Life of this patent
Estimating the term…
Abstract
A motor unit includes a drive motor having an output shaft with a hollow portion, and a torque sensor arranged inside the hollow portion. The output shaft is formed by a magnetic body. A vehicle can include the motor unit. The drive motor can be a traction motor that generates traction drive force of the vehicle, for example.
Claims4
A motor unit comprising:
- a drive motor including an output shaft with a hollow portion;
- and
- a torque sensor arranged in the hollow portion, and
- a support rod arranged inside the output shaft and secured to a stator-side component of the drive motor,
- wherein the output shaft is formed by a magnetic body,
- and wherein the torque sensor is a magnetostrictive torque sensor, including a plurality of magnetostrictive layers arranged on an inner circumferential surface of the output shaft, and a plurality of coils arranged in the support rod.
3 more elements
A vehicle comprising a motor unit comprising:
- a drive motor including an output shaft with a hollow portion,
- a torque sensor arranged in the hollow portion,
- the output shaft being formed by a magnetic body, and
- a support rod arranged inside the output shaft and secured to a stator-side component of the drive motor, wherein
- the torque sensor is a magnetostrictive torque sensor including a plurality of magnetostrictive layers arranged on an inner circumferential surface of the output shaft and a plurality of coils arranged in the support rod,
- wherein the drive motor is either a traction motor, that generates a traction drive force of the vehicle, or a generator that generates power based on a drive force of an internal combustion engine of the vehicle.
3 more elements
Dependencies are inferred from the claim text.