US 2022/0056864 A1 · FUEL INJECTION DEVICE

Abstract

A fuel injection device includes: an injector, an electronic control device, a communication circuit, and a power supply circuit. A memory is provided in the injector for storing fuel injection control data set for each injector. The electronic control device controls a fuel injection of the injector based on the control data. The communication circuit is installed for each injector, and enables the electronic control device to access the memory via wireless communication. The power supply circuit is installed for each injector, has a power source that supplies electric power to the communication circuit, and receives electric power to charge the power source from a drive line that connects the electronic control device and a drive unit of the injector.

Claims19

Dependent claims

A fuel injection device comprising:

an injector having a memory that stores fuel injection control data set for each injector installed in each cylinder of an engine;
an electronic control device configured to control fuel injection of the injector based on the control data stored in the memory;
a communication circuit installed for each injector, enabling the electronic control device to access the memory via wireless communication;
and
a power supply circuit installed for each injector, having a power source that supplies electric power to the communication circuit, and receives electric power to charge the power source from a drive line that connects the electronic control device and a drive unit of the injector.

2 more elements

A fuel injection device comprising:

a first communication system associated with a first fuel injector,
wherein the first fuel injector is associated with a first cylinder,
wherein the first fuel injector includes a first injector memory, and
wherein the first communication system includes:
(i) a first upper communication line configured for electrical connection to a first left drive line,
(ii) a first lower communication line configured for electrical connection to a first right drive line,
(iii) a first resistor including:
first resistor left end, and a first resistor right end, wherein the first resistor left end is connected to the first upper communication line,
(iv) a first blocking diode including:
a first blocking diode anode end, and a first blocking diode cathode end, wherein the first blocking diode anode end is connected to the first resistor right end,
(v) a first capacitor connecting the first blocking diode cathode end to the first lower communication line,
(vi) a first switch connecting the first blocking diode cathode end to a ground when switched ON,
(vii) a first Zener diode connecting the first blocking diode cathode end to the first lower communication line, and configured to discharge the first capacitor when a first capacitor voltage exceeds a first Zener voltage,
(viii) a first regulator connecting the first blocking diode cathode end to the first lower communication line, and
(ix) a first communication circuit connecting the first regulator to the first lower communication line.

12 more elements

Dependencies are inferred from the claim text.

Fuel injection device

Life of this patent

Fuel injection device

Life of this patent

Abstract

Claims19