Invention Grant
- Patent Title: Electric parking brake having a gearing with a torque limiting device
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Application No.: US16458564Application Date: 2019-07-01
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Publication No.: US11433865B2Publication Date: 2022-09-06
- Inventor: Kraig Gerber , Aaron Wahlfors
- Applicant: ZF Active Safety US Inc.
- Applicant Address: US MI Livonia
- Assignee: ZF Active Safety US Inc.
- Current Assignee: ZF Active Safety US Inc.
- Current Assignee Address: US MI Livonia
- Agent Robert James Harwood
- Main IPC: F16D65/18
- IPC: F16D65/18 ; B60T13/58 ; B60T1/06 ; B60T13/74 ; F16H25/20 ; F16D7/00 ; F16H35/10

Abstract:
An electrically actuated parking brake has a single electric motor producing a torque, a first torque limiting device with a first spring force, and a second torque limiting device with a second spring force. The first torque limiting device fully transmits a first portion of the torque to a first spindle until a first clamp force overcomes the first spring force and the second torque limiting device fully transmits a second portion of the torque to a second spindle until a second clamp force overcomes the second spring force. When the first clamp force overcomes the first spring force and the second spring force overcomes the second clamp force, the first portion of the torque that exceeds the first spring force is transmitted to the second spindle by the second torque limiting device.
Public/Granted literature
- US20210001826A1 ELECTRIC PARKING BRAKE HAVING A GEARING WITH A TORQUE LIMITING DEVICE Public/Granted day:2021-01-07
Information query
IPC分类: