Power train controller and associated memory device

Patent metadata

Field	Value
Publication number	US-9970532-B2
Application number	US-201514978492-A
Country	US
Kind code	B2
Filing date	Dec 22, 2015
Priority date	Jan 13, 2009
Publication date	May 15, 2018
Grant date	May 15, 2018

Abstract

A power train subsystem for a motorized vehicle and methods of programming such power train controllers of the power train subsystem are disclosed. The power train subsystem may include a power train component, a controller, and a memory device. The controller may be coupled to the power train component to control operation of the power train component. The memory device may include boot code, application software, standard calibration parameters, and custom calibration parameters. The boot code provides an environment upon which the application software executes per the standard calibration parameters and custom calibration parameters. The standard calibration provides parameters which configure the controller for a range of vehicular applications. The custom calibration parameters provide parameters which configure the controller for a particular vehicular application in the range of vehicular applications.

First claim

What is claimed is:

1. A power train subsystem for a motorized vehicle, the power train subsystem comprising:
a power train component to drive a drive assembly,
a controller coupled to the power train component to control operation of the power train component,
a memory device separate from the controller, and
a connector located on a shift selector of the motorized vehicle and communicatively coupled to the controller, the connector having a memory slot sized to receive the memory device,
wherein (i) the connector communicatively couples the memory device to the controller when the memory device is received in the memory slot and (ii) the memory device is removable from the memory slot.

2. The power train subsystem of claim 1 , wherein the memory device comprises a boot code executable by the controller to define an operating environment, application software to provide the controller with commands to control the power train component, standard calibration parameters which configure the controller and power train component for a range of vehicular applications, and custom calibration parameters which configure the controller and power train component for a particular vehicular application of the range of vehicular applications.

3. The power train subsystem of claim 2 , wherein the power train component comprises a torque converter.

4. The power train subsystem of claim 1 , wherein (i) the power train component comprises a transmission and (ii) the controller comprises a transmission control module.

5. The power train subsystem of claim 4 , wherein the memory device is common to a second power train subsystem separate from the power train subsystem.

6. The power train subsystem of claim 5 , wherein the second power train subsystem comprises (i) an engine and (ii) an engine control unit coupled to the engine to control operation of the engine.

7. The power train subsystem of claim 6 , wherein the transmission control module is externally coupled to the transmission.

8. The power train subsystem of claim 6 , wherein the transmission control module is integrated into the transmission.

9. The power train subsystem of claim 1 , wherein (i) the power train component comprises an engine and (ii) the controller comprises an engine control unit.

Assignees

• Allison Transm Inc

Inventors

• Litscher Christian M
• Rues Jeanne O
• Howenstein Michael J

Classifications

• G01M17/007

  Wheeled or endless-tracked vehicles (G01M17/08 takes precedence) · CPC title

• G06F19/00

  Physics · mapped topic

• F02D29/02

  peculiar to engines driving vehicles; peculiar to engines driving variable pitch propellers · CPC title

• G01L5/28

  for testing brakes · CPC title

• B60W50/02

  Ensuring safety in case of control system failures, e.g. by diagnosing, circumventing or fixing failures · CPC title