Method and system for providing a voting strategy for determining a mode state in a shift-by-wire transmission
First Claim
1. A method for determining a mode state in a shift-by-wire transmission in a vehicle including at least three memories, said method comprising:
- writing a remembered mode state into each memory;
reading each memory; and
if at least two of the remembered mode states match then causing the transmission to enter a mode state corresponding to the at least two remembered mode states which match.
1 Assignment
0 Petitions
Accused Products
Abstract
A voting strategy is used to determine the mode state of a transmission when a vehicle is restarted. The transmission includes a return to park feature and a controller including at least three memories. The controller is configured to write a remembered mode state into each memory. The remembered mode state is one of a Normal mode state that allows the transmission to automatically shift to Park, a hold mode state that causes the transmission to remain in Neutral and not automatically shift to Park upon detecting a triggering event or other mode states. The controller reads each memory and, when at least two of the remembered mode states are the same mode state, causes the transmission to enter a mode state corresponding to the same mode state.
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Citations
26 Claims
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1. A method for determining a mode state in a shift-by-wire transmission in a vehicle including at least three memories, said method comprising:
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writing a remembered mode state into each memory; reading each memory; and if at least two of the remembered mode states match then causing the transmission to enter a mode state corresponding to the at least two remembered mode states which match. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for determining a mode state in a shift-by-wire transmission in a vehicle including a sensor and at least two memories, said method comprising:
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writing a remembered mode state into each memory; reading each memory; if at least two of the remembered mode states match, then determining, with the sensor, a plausibility of a mode state corresponding to the at least two remembered mode states which match; if the mode state corresponding to the at least two remembered mode states which match is determined to be plausible, causing the transmission to enter the mode state corresponding to the at least two remembered mode states which matched; and if at least two of the remembered mode states do not match, then causing the transmission to enter a safe mode state. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A system for remembering a mode state in a vehicle comprising:
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a shift-by-wire transmission including a return to park feature; and a controller including at least three memories, the controller configured to;
write a remembered mode state into each memory, the remembered mode state being one of a normal mode state that allows the transmission to automatically shift to Park, a hold mode state that causes the transmission to stay in Neutral and not automatically shift to Park upon detecting a triggering event or other mode states;
read each memory to determine if at least two of the remembered mode states match; and
cause the transmission to enter a hold mode state corresponding to the at least two remembered mode states that match. - View Dependent Claims (20, 21, 22)
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23. A system for remembering a mode state in a vehicle including a sensor comprising:
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a shift-by-wire transmission including a return to park feature; and a controller including at least two memories, the controller configured to;
write a remembered mode state into each memory, the remembered mode state being one of a normal mode state that allows the transmission to automatically shift to Park, a hold mode state that causes the transmission to stay in Neutral and not automatically shift to Park upon detecting a triggering event or other mode states;
read each memory to determine if at least two of the remembered mode states match;
if at least two of the remembered mode states match, determine, with the sensor, a plausibility of a mode state corresponding to the at least two remembered mode states that match;
if the mode state corresponding to the at least two remembered mode states which match is determined to be plausible, causing the transmission to enter the mode state corresponding to the at least two remembered mode states which match; and
, if at least two of the remembered mode states do not match, then causing the transmission to enter a safe mode state. - View Dependent Claims (24, 25, 26)
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Specification