Powertrain system for a hybrid electric vehicle

Patent · Tue Aug 31 04:00:00 EDT 1999

OSTI ID:872478

Boberg, Evan S ^[1]; Lawrie, Robert E ^[2]; Castaing, Francois J ^[3]

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1. Hazel Park, MI
2. Whitmore Lake, MI
3. Bloomfield Township, MI

A hybrid electric powertrain system is provided including an electric motor/generator drivingly engaged with the drive shaft of a transmission. The electric is utilized for synchronizing the rotation of the drive shaft with the driven shaft during gear shift operations. In addition, a mild hybrid concept is provided which utilizes a smaller electric motor than typical hybrid powertrain systems. Because the electric motor is drivingly engaged with the drive shaft of the transmission, the electric motor/generator is driven at high speed even when the vehicle speed is low so that the electric motor/generator provides more efficient regeneration.

• Assignee: Chrysler Corporation (Auburn Hills, MI)
• Patent Number(s): US 5943918
• Application Number: 08/980,685
• OSTI ID: 872478
• Country of Publication: United States
• Language: English

Related Subjects

/74/192/475/
addition
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drive shaft
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efficient
electric
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gear
gear shift
generator
generator provides
hybrid
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including
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provided
provided including
provides
regeneration
rotation
shaft
shift
speed
synchronizing
systems
transmission
typical
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utilizes
vehicle