Chipped engine control unit system having copy protected and selectable multiple control programs
First Claim
Patent Images
1. A chipped engine control unit (ECU) system, comprising:
- a) chipped ECU;
b) said chipped ECU including a stock performance lookup table relating to an engine performance parameter and a chipped performance lookup table relating to said engine performance parameter; and
c) said chipped ECU includes a timer set for a predetermined period of time to allow the user to evaluate said chipped ECU.
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Abstract
The present invention discloses a method for preventing a control program written in a first engine control unit (ECU) from running in a second ECU, comprising obtaining an ID number from the first ECU; encrypting the ID number; writing the encrypted ID number into a flash memory of the first ECU; encrypting the ID number again and writing the encrypted ID number into an EEPROM of the first ECU; and requiring the control program to match the encrypted ID number placed in the flash memory and the EEPROM before running the program, and if the match fails, terminating the control program from running further.
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Citations
22 Claims
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1. A chipped engine control unit (ECU) system, comprising:
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a) chipped ECU; b) said chipped ECU including a stock performance lookup table relating to an engine performance parameter and a chipped performance lookup table relating to said engine performance parameter; and c) said chipped ECU includes a timer set for a predetermined period of time to allow the user to evaluate said chipped ECU. - View Dependent Claims (2, 3, 4)
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5. A chipped engine control unit (ECU) system, comprising:
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a) chipped ECU; b) said chipped ECU including a stock performance lookup table and a chipped performance lookup table; and c) said chipped ECU is programmed to run said performance lookup table only if an ID number of said chipped ECU matches with data located in at least one predetermined memory location in said chipped ECU. - View Dependent Claims (6, 7, 8)
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9. A chipped engine control unit (ECU) system, comprising:
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a) chipped ECU; b) an external device communicating with said chipped ECU; c) said chipped ECU including a stock performance lookup table relating to an engine performance parameter and a chipped performance lookup table relating to said engine performance parameter; and d) said external device is configured to allow a user to choose said stock performance lookup table, or said chipped performance lookup table, or another performance lookup table generated by linear interpolation between said stock and chipped performance lookup tables such that the user can select to operate said ECU at said stock performance lookup table, or said chipped performance lookup table, or in between said stock and chipped performance lookup tables. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification