# US 2010/0168967 A1 · System and method for detecting vehicle movement based on driveline torque sensor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2010/0168967 A1 - Document ID: US20100168967A1 - Status: Published application - Kind: A1 - Application number: 12/345,034 - Filed: 2008-12-29 - Published: 2010-07-01 - Earliest claimed: 2008-12-29 - Assignees: GM Global Technology Operations LLC - Inventors: Randall B. Dlugoss; John R. Maten; Micheal P. Portell - Web page: https://patentgrep.com/patent/US20100168967A1 ## CPC - B60W 30/18054: {at stand still, e.g. engine in idling state (hill holding B60W30/18118)} - B60W 40/10: related to vehicle motion - B60W 2510/105: Output torque - B60W: CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT ## Abstract A system and method for detecting vehicle movement based on the measurement of the torque value on a vehicle drivetrain is disclosed. The system includes a torque sensor for measuring the torque on a vehicle drivetrain. This measured torque is utilized by a control module, with various other measured vehicle parameters, to determine if the conditions are such that vehicle movement may occur or has already begun. Possible vehicle movement is indicated when either the measured torque value exceeds a threshold value and changes towards zero, or big noise spikes are present in the torque sensor output signal. ## Claims ### Claim 1 A system for detecting movement of a vehicle, comprising: a torque sensor that detects a torque value on a vehicle drivetrain; and a controller that determines possible vehicle movement based on the torque value. ### Claim 2 (depends on 1) The system of claim 1, wherein the torque sensor is operably coupled to an output shaft of the vehicle transmission. ### Claim 3 (depends on 1) The system of claim 1, wherein the controller determines possible vehicle movement based on a change of the torque value. ### Claim 4 (depends on 1) The system of claim 1, wherein the controller determines possible vehicle movement based on an abrupt change of the torque value. ### Claim 5 (depends on 1) The system of claim 1, wherein the controller determines possible vehicle movement based on a fluctuation of the torque value greater than an expected torque value threshold. ### Claim 6 (depends on 5) The system of claim 5, wherein the expected torque value threshold is based on a vehicle condition. ### Claim 7 (depends on 6) The system of claim 6, wherein the vehicle condition comprises park, drive, reverse or neutral. ### Claim 8 (depends on 1) The system of claim 1, wherein the controller determines possible vehicle movement based on an abrupt change of the torque value in a direction opposite that of a loaded torque value in a static state. ### Claim 9 (depends on 1) The system of claim 1, wherein the controller determines possible vehicle movement based on an abrupt change of the torque value in a direction opposite that of a loaded torque value in a static state when the expected torque value threshold exceeds a threshold. ### Claim 10 (depends on 1) The system of claim 1, wherein the controller determines possible vehicle movement based on the torque value by detecting spikes in an output signal of the torque sensor of a magnitude greater than an expected noise threshold. ### Claim 11 A method of determining vehicle movement, comprising: detecting a torque value on a vehicle drivetrain; and determining possible vehicle movement based on the torque value. ### Claim 12 (depends on 11) The method of claim 11, wherein the torque value comprises a torque magnitude and a torque direction and the step of determining possible vehicle movement based on the torque value comprises determining a vehicle state, determining an expected torque value threshold based on the vehicle state, and comparing the torque value to the expected torque value threshold, wherein if the torque value is greater than the expected torque value threshold and the torque magnitude decreases, possible vehicle movement is determined. ### Claim 13 (depends on 11) The method of claim 11, wherein the torque value comprises a measurement of torque on an output shaft of the vehicle transmission. ### Claim 14 (depends on 11) The method of claim 11, wherein the step of determining possible vehicle movement based on the torque value comprises determining possible vehicle movement based on a change of the torque value. ### Claim 15 (depends on 11) The method of claim 11, wherein the step of determining possible vehicle movement based on the torque value comprises determining possible vehicle movement based on an abrupt change of the torque value. ### Claim 16 (depends on 11) The method of claim 11, wherein the step of determining possible vehicle movement based on the torque value comprises determining possible vehicle movement based on a fluctuation of the torque value greater than an expected torque value threshold. ### Claim 17 (depends on 16) The method of claim 16, wherein the expected torque value threshold is based on a vehicle condition. ### Claim 18 (depends on 17) The method of claim 17, wherein the vehicle condition comprises park, drive, reverse or neutral. ### Claim 19 (depends on 11) The method of claim 11, wherein the step of determining possible vehicle movement based on the torque value comprises determining possible vehicle movement based on an abrupt change of the torque value in a direction opposite that of a loaded torque value in a static state. ### Claim 20 (depends on 11) The method of claim 11, wherein the step of determining possible vehicle movement based on the torque value comprises determining possible vehicle movement based on an abrupt change of the torque value in a direction opposite that of a loaded torque value in a static state when an expected torque value threshold exceeds a threshold. ### Claim 21 (depends on 11) The method of claim 11, wherein the step of determining possible vehicle movement based on the torque value comprises detecting spikes in the torque value of a magnitude greater than an expected noise threshold. ### Claim 22 A system for detecting movement of a vehicle, comprising: a torque sensor that detects a torque value on an output of a vehicle drivetrain, wherein the torque value comprises a torque magnitude and a torque direction; and a controller that determines possible vehicle movement based on the torque value by determining a vehicle state, by determining an expected torque value threshold based on the vehicle state, and by comparing the torque value to the expected torque value threshold, wherein if the torque value is greater than the expected torque value threshold and the torque magnitude decreases, possible vehicle movement is determined.