Invention Grant
- Patent Title: Electric motor assist for transmission electric oil pump
- Patent Title (中): 电动马达辅助传动电动油泵
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Application No.: US13409388Application Date: 2012-03-01
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Publication No.: US08795118B2Publication Date: 2014-08-05
- Inventor: Laszlo Hideg , Zhenxing Fu , Xiaodong Liu , Dumitru Puiu
- Applicant: Laszlo Hideg , Zhenxing Fu , Xiaodong Liu , Dumitru Puiu
- Applicant Address: US MI Auburn Hills
- Assignee: Chrysler Group LLC
- Current Assignee: Chrysler Group LLC
- Current Assignee Address: US MI Auburn Hills
- Agent Ralph E Smith
- Main IPC: F16H3/72
- IPC: F16H3/72 ; F16H31/00
Abstract:
A method for assisting a transmission oil pump in a hybrid electric powertrain to generate transmission oil pressure rapidly during vehicle start. An electric motor is initially utilized to provide momentary torque to rotate an oil pump and rapidly generate transmission oil pressure. After initial assistance is provided by the electric motor, an oil pump electric motor powers the oil pump and maintains oil pressure within the hybrid powertrain.
Public/Granted literature
- US20120275930A1 ELECTRIC MOTOR ASSIST FOR TRANSMISSION ELECTRIC OIL PUMP Public/Granted day:2012-11-01
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