Rotating machine control device and electric power steering device
US-2024067258-A1 · Feb 29, 2024 · US
Steering system for vehicle
US9751555B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9751555-B2 |
| Application number | US-201414896934-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 12, 2014 |
| Priority date | Jun 19, 2013 |
| Publication date | Sep 5, 2017 |
| Grant date | Sep 5, 2017 |
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- Title
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- Abstract
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- First independent claim
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Abstract
Official abstract text for this publication.
A steering system includes a steering unit including a first actuator; a turning unit including a second actuator; and a backup mechanism configured to mechanically couple the steering unit and the turning unit, wherein a maximum torque that the first actuator is able to transmit to the second actuator via the backup mechanism is larger than or equal to a maximum torque that the second actuator is able to transmit to the first actuator via the backup mechanism.
First claim
Opening claim text (preview).
What is claimed is: 1. A steering system comprising: a steering unit including a first actuator; a turning unit including a second actuator; and a backup mechanism configured to mechanically couple the steering unit and the turning unit, wherein a maximum torque that the first actuator is able to transmit to the second actuator via the backup mechanism is larger than or equal to a maximum torque that the second actuator is able to transmit to the first actuator via the backup mechanism. 2. The steering system according to claim 1 , further comprising: a control unit configured to set a generatable maximum torque of the second actuator on a basis of a vehicle state. 3. The steering system according to claim 2 , wherein the control unit is configured to set, when a vehicle speed is higher that a first predetermined value, the generatable maximum torque of the second actuator such that the maximum torque that the second actuator is able to transmit via the backup mechanism becomes smaller than or equal to the maximum torque that the first actuator is able to transmit via the backup mechanism. 4. The steering system according to claim 2 , wherein the control unit is configured to set, when a steering angle is smaller than a second predetermined value, the generatable maximum torque of the second actuator such that the maximum torque that the second actuator is able to transmit via the backup mechanism becomes smaller than or equal to the maximum torque that the first actuator is able to transmit via the backup mechanism.
Assignees
Inventors
Classifications
Controlling the motor · CPC title
Electric motor acting on the steering column · CPC title
- B62D5/003Primary
Backup systems, e.g. for manual steering (B62D5/30 takes precedence) · CPC title
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Frequently asked questions
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- What does patent US9751555B2 cover?
- A steering system includes a steering unit including a first actuator; a turning unit including a second actuator; and a backup mechanism configured to mechanically couple the steering unit and the turning unit, wherein a maximum torque that the first actuator is able to transmit to the second actuator via the backup mechanism is larger than or equal to a maximum torque that the second actuator…
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B62D5/003. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Sep 05 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).