METHOD AND SYSTEM FOR MONITORING SIGNAL INTEGRITY IN A DISTRIBUTED CONTROLS SYSTEM
First Claim
1. Method to monitor integrity of a signal generated and communicated in a control system for a powertrain system including an engine, a transmission and a torque generating machine connected to an energy storage device, the transmission operative to transfer power between the engine and the torque generating machine and an output member, the method comprising:
- establishing a distributed control module system comprising a first control module operatively connected to the engine, a second control module operatively connected to the torque generating device, a third control module operatively connected to the transmission device, and a hybrid control module operative to command operation of the first, second, and third control modules;
establishing a communications link to transmit the signal between the first control module, the second control module, the third control module and the hybrid control module and a user interface;
monitoring integrity of each of the first, second, third, and hybrid control modules;
generating the signal in an originating control module comprising one of the first, second, third and hybrid control modules;
verifying integrity of the signal within the originating control module;
transmitting the signal via the communications link to a receiving control module comprising one of the first, second, third and hybrid control modules that is not the originating control module; and
verifying integrity of the transmitted signal within the receiving control module.
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Accused Products
Abstract
A method to monitor integrity of a signal in a distributed control system for a powertrain system includes communications link transmitting signals between control modules. Integrity of each of the control modules is monitored. The signal is generated and verified in an originating control module and transmitted to a receiving control module whereat it is subsequently verified.
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Citations
17 Claims
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1. Method to monitor integrity of a signal generated and communicated in a control system for a powertrain system including an engine, a transmission and a torque generating machine connected to an energy storage device, the transmission operative to transfer power between the engine and the torque generating machine and an output member, the method comprising:
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establishing a distributed control module system comprising a first control module operatively connected to the engine, a second control module operatively connected to the torque generating device, a third control module operatively connected to the transmission device, and a hybrid control module operative to command operation of the first, second, and third control modules; establishing a communications link to transmit the signal between the first control module, the second control module, the third control module and the hybrid control module and a user interface; monitoring integrity of each of the first, second, third, and hybrid control modules; generating the signal in an originating control module comprising one of the first, second, third and hybrid control modules; verifying integrity of the signal within the originating control module; transmitting the signal via the communications link to a receiving control module comprising one of the first, second, third and hybrid control modules that is not the originating control module; and verifying integrity of the transmitted signal within the receiving control module. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. Method to monitor signal integrity in a control system for a powertrain system including an engine, a transmission and a plurality of torque generating machines connected to an energy storage device, the transmission operative to transfer power between the engine and the torque generating machines and an output member, the method comprising:
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establishing a distributed control module system comprising a first control module operatively connected to the engine, a plurality of second control modules corresponding to and operatively connected to the plurality of torque generating machines, a third control module operatively connected to the electro-mechanical transmission, and a hybrid control module operative to generate commands to control operation of the powertrain system; establishing a communications link between the control modules; monitoring hardware integrity of each of the control modules; monitoring integrity of memory devices of each of the control modules; monitoring integrity of algorithms and memory devices of the control modules; monitoring communications integrity; and executing remedial action upon detection of a fault. - View Dependent Claims (14, 15, 16, 17)
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Specification