US 2025/0084776 A1 · DEVICE FOR DETECTING DROP OF OIL PRESSURE

Abstract

A device configured to detect a drop of oil pressure includes: a first gate configured to receive an acceleration measured by an acceleration sensor and to output a logical value indicating whether the acceleration falls within a range that is determined by a turning cam tracking diagnosis entry acceleration and a turning cam tracking diagnosis escape acceleration; a second gate configured to invert an output of the first gate; and a third gate configured select and output one of an output value of the second gate or a first value based on a first selection signal. The device is configured to perform a turning cam tracking diagnosis entry when the output value of the third gate is the first value, and the device is configured to not perform the turning cam tracking diagnosis entry when the output value of the third gate is a second value.

Claims13

Dependent claims

A device configured to detect a drop of oil pressure, the device comprising:

a first gate configured to receive an acceleration measured by an acceleration sensor and to ouput a logical value indicating whether the acceleration falls within a range that is determined by a turning cam tracking diagnosis entry acceleration and a turning cam tracking diagnosis escape acceleration;
a second gate configured to invert an output of the first gate;
and
a third gate configured to, based on a first selection signal, select and ouput one of (i) an output value of the second gate or (ii) a first value,
wherein the device is configured to:
perform a turning cam tracking diagnosis entry based on the output value of the third gate being the first value, and
not perform the turning cam tracking diagnosis entry based on the output value of the third gate being a second value different from the first value.

4 more elements

A device configured to detect a drop of oil pressure, the device comprising:

a first gate configured to perfrom a square calculation with a vehicle speed measured by a vehicle speed sensor;
a second gate configured to output an absolute value of a steering angle measured by a steering angle sensor;
a third gate configured to perform a multiplication calculation with an output value of the first gate and an output value of the second gate;
a fourth gate configured to perform a multiplication calculation with an output value of the third gate and a first type mapping value;
a fifth gate configured to perform a square calculation with an output value of the fourth gate;
a sixth gate configured to perform a multiplication calculation with an output value of the fifth gate and a second type mapping value;
a seventh gate configured to perform a sum calculation with the output value of the second gate and an output value of the sixth gate;
an eighth gate configured to perform a division calculation with the output value of the second gate and an output value of the seventh gate;
and
a ninth gate configured to perform a multiplication calculation with an output value of the eighth gate and the output value of the fourth gate,
wherein the device is configured to determine whether to perform a turning cam tracking diagnosis entry based on an output value of the ninth gate and an acceleration measured by an acceleration sensor.

8 more elements

Dependencies are inferred from the claim text.

Device for detecting drop of oil pressure

Life of this patent

Device for detecting drop of oil pressure

Life of this patent

Abstract

Claims13