Patent ID: 8413437
Filing Date: 2013-04-09
Classification: B60K,F16H,Y02T

Abstract:
1. A hydraulic control system in a transmission, the hydraulic control system comprising: a source of pressurized hydraulic fluid for providing a pressurized hydraulic fluid; a main line circuit in fluid communication with the source of pressurized hydraulic fluid; a regulation valve in fluid communication with the source of pressurized hydraulic fluid, the regulation valve moveable between a plurality of positions; a lubrication valve in fluid communication with the regulation valve, the lubrication valve moveable between a plurality of positions; a lubrication circuit in fluid communication with the lubrication valve; a cooling circuit in fluid communication with the lubrication valve; wherein the regulation valve allows pressurized hydraulic fluid to communicate with the lubrication valve after the main line circuit is saturated with pressurized hydraulic fluid, wherein the lubrication valve allows fluid communication between the regulation valve and the lubrication circuit until the lubrication circuit is saturated, and wherein the lubrication valve allows fluid communication between the regulation valve and the cooling circuit and the lubrication circuit after the lubrication circuit is saturated.