Chrysler Corporation

Daimlerchrysler Corporation

Bruce T Siekkinen

Barry J Lake

David J Perkins

Lawrence Ziehr

Gerald P Spezia

Richard Harris

Frederick J Winsor

The invention provides a battery cooling system to cool an electric vehicle battery pack and extend the operating range of an automotive heat pump system. Waste heat from the battery pack is transferred to a secondary coolant system thereby cooling the battery pack. A secondary heat exchanger is coupled between the secondary cooling system and a reversible HVAC system. The secondary heat exchanger transfers the secondary coolant system heat energy to the reversible HVAC system. The heat energy transferred to the reversible HVAC system supplements the existing stored energy thereby extending the heating mode operating range of the HVAC system. The requirement for supplemental electric heating is reduced, further increasing the electric vehicle energy efficiency.

System for cooling electric vehicle batteries

There is disclosed herein a vehicle rear suspension system for use with the vehicle's side rails and wheel support members secured to the ends of a tubular axle. The system includes oppositely disposed trailing arms pivotally connected at their forward ends to the respective side rails and connected by a pair of vertically oriented resilient bushings at their trailing ends to the respective wheel support members. Each bushing includes an inner metal sleeve secured to the adjacent wheel support member, an outer metal sleeve secured to the trailing arm, and a rubber ring bonded between the sleeves.

Vehicle rear suspension system

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Clarkston, MI, United States of America

Bruce T Siekkinen