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US 2009/0265489 A1Published application
Programmable CAN Bus To Analogue Signal Converter
AssigneeInternational Truck Intellectual Property Company, LLC
InventorsGavin L. Replogle, Joshua D. Cryer
Life of this patent
Estimating the term…
Abstract
A module (10) connects to a CAN bus in a motor vehicle and converts a CAN message into an analog signal that can be monitored by test equipment. The module also has wireless communication with a PDA (300) via a radio transceiver (28) to allow the PDA to display a converted CAN message and to select different messages for display.
Claims9
A module for converting a CAN message into an analog signal comprising:
- one or more connectors providing an input for connection of the module to a CAN bus and an output terminal at which the analog signal is presented;
- a microcontroller containing an algorithm for seeking a particular message on the CAN bus and when the particular message appears on the bus, for converting the particular message to a proportional PWM signal that is presented at an output of the microcontroller;
- and
- an RC integrator connecting the output of the microcontroller to the output terminal of the one or more connectors at which the analog signal is presented.
1 more element
A system for converting a CAN message on a CAN bus in a motor vehicle into visual data that can be read on a display:
- one or more connectors providing for connection of a module to the CAN bus and to an electrical power supply of the vehicle;
- the module containing a microcontroller that is powered by the vehicle power supply and contains an algorithm for seeking a particular message on the CAN bus and when the particular message appears on the bus, for converting the particular message to a signal that is presented at an output of the microcontroller;
- a first transceiver for converting the signal at the output of the microcontroller to a wireless signal that is transmitted to a device containing the display;
- and
- the device comprises a second transceiver for receiving the wireless signal and converting it into visual data on the display.
2 more elements
Dependencies are inferred from the claim text.