Pneumatic venting of modular hybrid electric vehicle

摘要

A system for venting a hybrid electric powertrain includes a module defining a first volume containing a clutch and an electric machine, a housing defining a second volume containing an automatic transmission, and lines producing mutual pneumatic connections among the first volume, the second volume and ambient atmosphere.

主权项

1. A system for venting a hybrid electric powertrain, comprising:
a module defining a first volume containing a clutch and an electric machine; a housing defining a second volume containing an automatic transmission; pneumatic connections pneumatically connecting the first volume to the second volume and the first and second volumes to ambient atmosphere; and wherein a transmission sump is mounted to the housing, a transmission pump is configured to pump hydraulic fluid from the transmission sump to the module, the module is hydraulically sealed and supplied with hydraulic fluid under pressure from the transmission pump for actuating the clutch, with hydraulic fluid draining from the module into a sump in the module.