Granted Patent B2

US 8,977,429 · App. 13/720,173 · Granted Mar 10, 2015

Abstract

Claims (22)

1. A system for shifting a vehicle's transfer case into or out of a neutral position, the system comprising:

a transfer case control module connected to a transfer case; and

an electronic vehicle information center connected to the transfer case control module, the electronic vehicle information center instructing the transfer case control module to shift the transfer case into or out of the neutral position by:

detecting an ignition key being in a run position;

detecting an input signal request to shift the transfer case into or out of the neutral position;

determining whether predetermined conditions exist to allow the transfer case to be shifted into or out of the neutral position, the predetermined conditions including each of the engine being off, the brake pedal being applied, and the transmission being in neutral;

sending an instruction signal to the transfer case control module to shift the transfer case into or out of the neutral position based on the detected input signal only when the predetermined conditions exist and the input signal requesting to shift the transfer case into or out of the neutral position was held for a plurality of seconds.

2. The system of claim 1 , further comprising a control panel for generating the input signal.

3. The system of claim 2 , wherein the control panel is touch screen.

4. The system of claim 1 , wherein the transfer case control module is a vehicle drivetrain control module.

5. The system of claim 1 , wherein the electronic vehicle information center comprises an electronic display that provides visual and/or audio instructions for shifting the transfer case into or out of the neutral position.

6. The system of claim 1 , wherein the electronic vehicle information center comprises an electronic display that outputs a visual and/or an audio indication of whether the transfer case has been shifted into or out of the neutral position.

7. The system of claim 1 , wherein the electronic vehicle information center comprises a touch screen display device.

8. A method for shifting the transfer case into or out of a neutral position using an electronic vehicle information center, the method comprising:

detecting an ignition key being in a run position;

detecting a transfer case screen on an electronic vehicle information center display;

detecting an input signal requesting to shift the transfer case into or out of the neutral position;

determining whether predetermined conditions exist to allow the transfer case to be shifted into or out of the neutral position, the predetermined conditions including each of the engine being off, the brake pedal being applied, and the transmission being in neutral; and

shifting the transfer case into or out of the neutral position only when the predetermined conditions exist and the input signal requesting to shift the transfer case into or out of the neutral position was held for a plurality of seconds.

9. The method of claim 8 , wherein the input signal is generated after a selection is made on the electronic vehicle information center display.

10. The method of claim 8 , wherein the electronic vehicle information center display provides visual and/or audio instructions at the transfer case screen for shifting the transfer case into or out of the neutral position.

11. The method of claim 8 , wherein the electronic vehicle information center display outputs a visual and/or an audio an indication of whether the transfer case has been shifted into or out of the neutral position.

Assignments (7)