MODULAR TEMPERATURE PERFORMANCE DIAGNOSTIC FOR A VEHICLE
First Claim
1. A vehicle comprising:
- a power inverter module (PIM) having multiple phase outputs;
a motor/generator unit (MGU) electrically connected to the PIM, and having a motor winding;
a pair of vehicle components;
a first plurality of temperature sensors, wherein one of the first plurality of temperature sensors measures a temperature of the motor winding, and wherein each of the remaining sensors of the first plurality of temperature sensors measures a temperature of a corresponding one of the multiple phase outputs of the PIM;
a second plurality of temperature sensors that measure a temperature of a corresponding one of the pair of vehicle components; and
a controller having a temperature performance diagnostic algorithm, wherein the algorithm calculates an average temperature of the pair of vehicle components, and individually diagnoses the performance of each of the first plurality of temperature sensors using the average temperature.
7 Assignments
0 Petitions
Accused Products
Abstract
A vehicle includes a power inverter module (PIM), a motor/generator unit (MGU), vehicle components, temperature sensors, and a controller. The sensors measure temperatures of a motor winding of the MGU, and temperatures of the multiple phase outputs of the PIM. The second plurality of temperature sensors measures temperatures of the vehicle components. The controller calculates an average temperature of the components, and individually diagnoses each temperature sensor using the average temperature. A control circuit for the vehicle includes the first and second plurality of sensors and the controller. A temperature performance diagnostic method includes using the first plurality to measure a temperature of the motor winding and the phase outputs of the PIM, using the second plurality to measure a temperature of the components, calculating an average temperature of the components, and individually diagnosing the performance of each of the first plurality of sensors using the average temperature.
-
Citations
16 Claims
-
1. A vehicle comprising:
-
a power inverter module (PIM) having multiple phase outputs; a motor/generator unit (MGU) electrically connected to the PIM, and having a motor winding; a pair of vehicle components; a first plurality of temperature sensors, wherein one of the first plurality of temperature sensors measures a temperature of the motor winding, and wherein each of the remaining sensors of the first plurality of temperature sensors measures a temperature of a corresponding one of the multiple phase outputs of the PIM; a second plurality of temperature sensors that measure a temperature of a corresponding one of the pair of vehicle components; and a controller having a temperature performance diagnostic algorithm, wherein the algorithm calculates an average temperature of the pair of vehicle components, and individually diagnoses the performance of each of the first plurality of temperature sensors using the average temperature. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A control circuit for use aboard a vehicle having a three-phase power inverter module (PIM), a motor/generator unit (MGU) electrically connected to the PIM and having a motor winding, and a pair of vehicle components, the control circuit comprising:
-
a first plurality of temperature sensors, wherein one of the first plurality of temperature sensors is configured to measure a temperature of the motor winding, and wherein each of the remaining sensors of the first plurality of temperature sensors is adapted to measure a temperature of a different corresponding phase output of the PIM; a second plurality of temperature sensors each adapted for measuring a temperature of a corresponding one of the pair of vehicle components; and a controller having a temperature performance diagnostic algorithm, wherein the algorithm calculates an average temperature of the pair of vehicle components, and individually diagnoses the performance of each of the first plurality of temperature sensors using the average temperature. - View Dependent Claims (8, 9, 10, 11)
-
-
12. A temperature performance diagnostic method for use aboard a vehicle having a three-phase power inverter module (PIM), a motor/generator unit (MGU) electrically connected to the PIM and having a motor winding, and a pair of vehicle components, the method comprising:
-
using a first plurality of temperature sensors to measure a temperature of the motor winding and a temperature of a different corresponding phase output of the PIM; using a second plurality of temperature sensors to measure a temperature of a corresponding one of the pair of vehicle components; calculating an average temperature of the pair of additional vehicle components; and individually diagnosing the performance of each of the first plurality of temperature sensors using the average temperature. - View Dependent Claims (13, 14, 15, 16)
-
Specification