Method and apparatus for monitoring software and signal integrity in a distributed control module system for a powertrain system
AssigneesGM Global Technology Operations LLC, Daimler AG, Chrysler Corporation, Bayerishe Motoren Werke Aktiengesellschaft
InventorsHanne Buur, William R. Cawthorne, Trenton W. Haines, Jeong J. Park, Leonard G. Wozniak
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Abstract
A method to monitor integrity of a signal generated and communicated in a distributed control module system for a hybrid powertrain system includes generating and verifying signal within an originating control module. A message is generated based upon the signal. The message is transmitted and received at a receiving control module. The signal is extracted from the message and its integrity is verified.
Claims17
Method to monitor signal integrity in a distributed control module system operative to control a hybrid powertrain system, the method comprising:
- establishing a communications link to transmit a signal between an originating control module and a receiving control module;
- generating the signal in the originating control module;
- verifying integrity of the signal within the originating control module;
- generating a message based upon the signal;
- transmitting the message to the receiving control module using the communications link;
- receiving the message at the receiving control module;
- decoding the signal from the message;
- and
- verifying integrity of the signal within the receiving control module.
Method to monitor integrity of a signal for controlling a torque actuator communicated between an originating control module and a receiving control module in a distributed control module system for a powertrain system including a plurality of torque actuators, the method comprising:
- establishing a communications link to transmit the signal between the originating control module and the receiving control module;
- generating the signal in the originating control module;
- verifying integrity of the signal within the originating control module;
- generating a message based upon the signal;
- transmitting the message to the receiving control module using the communications link;
- receiving the message at the receiving control module;
- decoding the signal from the received message;
- verifying the decoded signal within the receiving control module;
- and
- operating one of the torque actuators based upon the verified signal.
Method to monitor integrity of a signal communicated between an originating control module and a torque actuator control module in a distributed control module system for a powertrain system including a plurality of torque actuators, the method comprising:
- generating a signal in the originating control module;
- capturing the signal as a primary and a redundant signal;
- executing diagnostics on each of the primary and redundant signals;
- validating the primary signal based upon the redundant signal;
- verifying integrity of first and second memory locations in the originating control module;
- storing the primary signal in the first and second memory locations when the primary signal is valid and the integrity of the first and second memory locations are verified;
- establishing a communications link to transmit the primary signal between the originating control module and the torque actuator control module;
- generating a message based upon the primary signal;
- and
- transmitting the message to the torque actuator control module.
Dependencies are inferred from the claim text.