Adaptive cruise control downshift request systems for manual transmission vehicles
First Claim
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1. An adaptive cruise control system for a vehicle comprising:
- a deceleration module that determines a deceleration rate based on a speed of at least one of the vehicle and an engine of the vehicle;
a downshift trigger module that generates a threshold signal based on the deceleration rate;
a shift module that generates a downshift signal when the speed is less than the threshold signal and while the vehicle is operating in a manual transmission mode; and
a warning period module that determines a reaction period,wherein the threshold signal is generated based on the reaction period.
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Abstract
An adaptive cruise control system for a vehicle includes a deceleration module, a downshift trigger module, and a shift module. The deceleration module determines a deceleration rate based on a speed of at least one of the vehicle and an engine of the vehicle. The downshift trigger module generates a threshold signal based on the deceleration rate. The shift module generates a downshift signal when the speed is less than the threshold signal and while the vehicle is operating in a manual transmission mode.
6 Citations
19 Claims
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1. An adaptive cruise control system for a vehicle comprising:
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a deceleration module that determines a deceleration rate based on a speed of at least one of the vehicle and an engine of the vehicle; a downshift trigger module that generates a threshold signal based on the deceleration rate; a shift module that generates a downshift signal when the speed is less than the threshold signal and while the vehicle is operating in a manual transmission mode; and a warning period module that determines a reaction period, wherein the threshold signal is generated based on the reaction period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An adaptive cruise control system for a vehicle comprising:
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a deceleration module that determines a deceleration rate based on a speed of at least one of the vehicle and an engine of the vehicle; a downshift trigger module that generates a threshold signal based on the deceleration rate; and a shift module that generates a downshift signal when the speed is less than the threshold signal and while the vehicle is operating in a manual transmission mode, wherein the downshift trigger module generates the threshold signal based on an engine stall threshold, and wherein the downshift trigger module determines the engine stall threshold based on at least one of mileage of the vehicle, a temperature of the engine, an altitude, a system voltage, and an idle speed.
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18. A method of operating an adaptive cruise control system of a vehicle comprising:
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determining a deceleration rate based on a speed of at least one of the vehicle and an engine of the vehicle; generating a threshold signal based on the deceleration rate; generating a downshift signal when the speed is less than the threshold signal and while the vehicle is operating in a manual transmission mode; and determining a reaction period based on a recognition period, a downshift period and a margin, wherein the threshold signal is generated based on the reaction period. - View Dependent Claims (19)
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Specification