VEHICLE CONTROL USING AN ESTIMATED OUTSIDE AIR TEMPERATURE
First Claim
1. A vehicle comprising:
- a vehicle system;
an outside air temperature (OAT) sensor;
a clock; and
a controller in communication with the OAT sensor and the clock, wherein the controller includes memory on which is recorded a garage temperature profile and an actual OAT profile;
wherein the controller is configured to;
detect a key-on event of the vehicle;
record an initial temperature reading from the OAT sensor;
record the time of day of the initial temperature reading, wherein the time of day is communicated to the controller by the clock;
determine, in response to the key-on event, whether the vehicle is located in a garage using the garage temperature profile, the actual OAT profile, and the time of day;
estimate an OAT for the corresponding time of day when the vehicle is in the garage; and
control an operation of the vehicle system using the estimated OAT before the vehicle leaves the garage.
3 Assignments
0 Petitions
Accused Products
Abstract
A vehicle includes a vehicle system, an outside air temperature (OAT) sensor, a clock, and a controller. The controller includes recorded garage temperatures and actual OAT profiles. At the key-on event, a controller-executed method includes recording an initial temperature reading from the OAT sensor and corresponding time of day from the clock. The controller determines whether the vehicle is in a garage using the profile of recorded temperatures and the time of day, and estimates an OAT for the corresponding time of day when the vehicle is in the garage. An operation of the vehicle system is controlled using the estimated OAT before the vehicle leaves the garage. The system may be a navigation system, and the operation may be modification of a calculated electric vehicle range. The system may be an HVAC or other system in another embodiment.
14 Citations
18 Claims
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1. A vehicle comprising:
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a vehicle system; an outside air temperature (OAT) sensor; a clock; and a controller in communication with the OAT sensor and the clock, wherein the controller includes memory on which is recorded a garage temperature profile and an actual OAT profile; wherein the controller is configured to; detect a key-on event of the vehicle; record an initial temperature reading from the OAT sensor; record the time of day of the initial temperature reading, wherein the time of day is communicated to the controller by the clock; determine, in response to the key-on event, whether the vehicle is located in a garage using the garage temperature profile, the actual OAT profile, and the time of day; estimate an OAT for the corresponding time of day when the vehicle is in the garage; and control an operation of the vehicle system using the estimated OAT before the vehicle leaves the garage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A vehicle comprising:
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an electric traction motor that generates motor output torque to propel the vehicle in an electric vehicle (EV) mode; a rechargeable energy storage system (RESS) that supplies electrical energy to the traction motor, wherein the RESS has a state of charge (SOC) and a capacity; a navigation system configured to calculate a remaining EV range as a function of the SOC and the capacity of the RESS; an outside air temperature (OAT) sensor mounted to the vehicle; a clock; and a controller in communication with the RESS, the OAT sensor, and the clock, and having tangible, non-transitory memory on which is recorded a profile of recorded temperatures, wherein the profile of recorded temperatures includes a garage temperature profile and an actual OAT profile; wherein the controller is configured to; detect a key-on event of the vehicle; determine, in response to the key-on event, whether the vehicle is located in a garage by calculating a difference between the garage temperature profile and the actual OAT profile and comparing the difference to a calibrated threshold; estimate an OAT when the vehicle is in the garage; and modify the calculated EV range using the estimated OAT before the vehicle leaves the garage. - View Dependent Claims (10, 11, 12)
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13. A method comprising:
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detecting a key-on event in a vehicle; recording, via a controller, an initial temperature reading from an outside air temperature (OAT) sensor; recording, via the controller, the time of day of the initial temperature reading; determining, in response to the detected key-on event, whether the vehicle is located in a garage using a profile of recorded temperatures and the time of day, wherein the profile of recorded temperatures includes a garage temperature profile and an actual OAT profile; estimating an actual OAT for the corresponding time of day when the vehicle is in the garage; and controlling an operation of a vehicle system using the estimated OAT before the vehicle leaves the garage. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification