US 11,894,760 B2 · Control circuit and method for fuel-saving multi-state switch

Abstract

A control circuit and method for a fuel-saving multi-state switch is provided. The control circuit comprises a vehicle body ECU, a fuel-saving control unit, and a PWM voltage regulating unit. The fuel-saving control unit is connected to the vehicle body ECU through a CAN bus to collect CAN signals. The fuel-saving control unit determines a switch gear required by a current vehicle according to the CAN signals and outputs a PWM pulse signal having a corresponding duty cycle. The PWM voltage regulating unit is connected to the fuel-saving control unit to receive the PWM pulse signal. The PWM voltage regulating unit outputs a voltage value corresponding to the switch gear according to the PWM pulse signal. The vehicle body ECU is connected to the PWM voltage regulating unit to receive the voltage value, so as to control a speed and torque of an engine according to the voltage value.

Claims13

Dependent claims

A control circuit for a fuel-saving multi-state switch, comprising:

a vehicle body Electronic Control Unit (ECU),
a fuel-saving control unit, and
a Pulse Width Modulation (PWM) voltage regulating unit, wherein:
the fuel-saving control unit is connected to the vehicle body ECU through a Controller Area Network (CAN) bus to be configured to collect CAN signals,
the fuel-saving control unit is configured to determine a switch gear required by a current vehicle according to the CAN signals and output a PWM pulse signal having a corresponding duty cycle,
the PWM voltage regulating unit is connected to the fuel-saving control unit to be configured to receive the PWM pulse signal,
the PWM voltage regulating unit is configured to output a voltage value corresponding to the switch gear according to the PWM pulse signal, and
the vehicle body ECU is connected to the PWM voltage regulating unit to be configured to receive the voltage value, so as to control a speed and torque of an engine according to the voltage value.

5 more elements

A control method for a fuel-saving multi-state switch, comprising:

(1) collecting Controller Area Network (CAN) signals by a fuel-saving control unit which is connected to a vehicle body Electronic Control Unit (ECU) through a CAN bus, determining, by the fuel-saving control unit, a switch gear required by a current vehicle according to the CAN signals, and outputting, by the fuel-saving control unit, a Pulse Width Modulation (PWM) pulse signal having a corresponding duty cycle,
(2) receiving the PWM pulse signal by a PWM voltage regulating unit which is connected to the fuel-saving control unit, and outputting, by the PWM voltage regulating unit, a voltage value corresponding to the switch gear according to the PWM pulse signal, and
(3) receiving the voltage value by the vehicle body ECU which is connected to the PWM voltage regulating unit, and controlling, by the vehicle body ECU, a speed and torque of an engine according to the voltage value.

Dependencies are inferred from the claim text.

Control circuit and method for fuel-saving multi-state switch

Life of this patent

Control circuit and method for fuel-saving multi-state switch

Life of this patent

Abstract

Claims13