公开(公告)号：US08886423B1

公开(公告)日：2014-11-11

申请号：US14032468

申请日：2013-09-20

Applicant: GM Global Technology Operations LLC

Inventor： Randall B. Dlugoss ,  Matthew Pruski ,  Dara Monajemi

IPC: G06F7/00 ,  F16H3/44 ,  B60W10/11 ,  B60W10/02

CPC classification number: B60W10/11 ,  B60W10/06 ,  B60W10/115 ,  B60W30/18072 ,  B60W2710/0644 ,  B60Y2400/421 ,  B60Y2400/427 ,  F16H3/66 ,  F16H2061/044 ,  F16H2200/201 ,  F16H2200/2041 ,  F16H2200/2094 ,  Y02T10/76

Abstract: A vehicle includes an engine, an engine control module (ECM), and a transmission assembly. The transmission assembly includes a transmission control module (TCM), a stationary member, gear sets, an input member connected to the engine and one of the gear sets, and a binary clutch assembly. The binary clutch assembly has a freewheeling element and a binary device preventing rotation of the binary clutch assembly when applied, and allows the binary clutch assembly to freewheel when released. The TCM controls a slip speed differential of the binary clutch assembly when the vehicle is coasting in a forward gear state. The TCM determines a threshold maximum slip speed differential, calculates a required engine speed for achieving no more than the threshold maximum, and transmits the required engine speed to the ECM to maintain engine speed at or above the required engine speed. Doing so enables transmission state and direction change flexibility.

Abstract translation: 车辆包括发动机，发动机控制模块（ECM）和变速器组件。 变速器组件包括变速器控制模块（TCM），固定构件，齿轮组，连接到发动机和齿轮组中的一个的输入构件以及二元离合器组件。 二进制离合器组件具有续流元件和防止二次离合器组件在施加时的旋转的二进制装置，并且允许二进制离合器组件在释放时飞行。 当车辆在前进档状态下滑行时，TCM控制二进制离合器组件的滑差速度差。 TCM确定阈值最大滑差速度差，计算达到不超过阈值最大值的所需发动机转速，并将要求的发动机转速发送到ECM，以将发动机转速保持在所需发动机转速以上。 这样做可以使传输状态和方向变化灵活。