Motor vehicle engine control electronic computer
View Patent ↗The subject matter of the present invention is a motor vehicle engine control electronic computer including an electric circuit ( 1 B) for managing at least one piece of electrical equipment ( 2 ) of the vehicle. The electric circuit includes at least one module ( 20 B) for digital connection to a piece of electrical equipment of the vehicle and a microcontroller ( 10 ) including at least one digital input port ( 110 ). The digital connection module includes a connector ( 210 ) for linking to the electrical equipment, a link ( 220 ) for connecting to the digital input port of the microcontroller and a diode package ( 230 B 1 ), connected firstly to the battery (B) voltage of the vehicle and secondly to the ground (M), including two diodes ( 231 B- 1, 231 B- 2 ) linked to each other at a midpoint ( 232 ) and being configurable to operate with a common anode or with a common cathode.
1. A motor vehicle engine control electronic computer, comprising:
a box; and
an electric circuit, mounted in the box, for managing at least one piece of electrical equipment of a vehicle, said electric circuit including a digital connection module for digitally connecting to a piece of electrical equipment of the vehicle and also including a microcontroller with a digital input port,
said digital connection module comprised of:
a linking connector for linking to the electrical equipment;
a connecting link for connecting to the digital input port of the microcontroller;
an input capacitor connected firstly to the linking connector and secondly to ground;
a diode package, connected firstly to a battery voltage of the vehicle and secondly to the ground, the diode package having two diodes linked to each other at a midpoint and being configurable to operate either with a common anode or with a common cathode for the microcontroller to detect a connection of the electrical equipment to the battery voltage of the vehicle or to the ground, respectively;
an input resistor connected firstly to the linking connector and secondly to the midpoint of the diode package;
a first output resistor connected firstly to the linking connector and secondly to the digital input port of the microcontroller via the connecting link;
a second output resistor connected firstly to the digital input port of the microcontroller via the connecting link and secondly to the ground; and
an output capacitor connected firstly to the digital input port of the microcontroller via the connecting link and secondly to the ground.
2. A motor vehicle engine control electronic computer, comprising:
a box; and
an electric circuit, mounted in the box, for managing at least one piece of electrical equipment of a vehicle, said electric circuit including a digital connection module for digitally connecting to a piece of electrical equipment of the vehicle and also including a microcontroller with a digital input port,
said digital connection module comprised of:
a linking connector for linking to the electrical equipment;
a connecting link for connecting to the digital input port of the microcontroller;
an input capacitor connected firstly to the linking connector and secondly to ground;
a diode package, connected firstly to a battery voltage of the vehicle and secondly to the ground, the diode package having two diodes linked to each other at a midpoint so as to operate with a common cathode for the microcontroller to detect a connection of the electrical equipment to the battery voltage of the vehicle;
an input resistor connected firstly to the linking connector and secondly to the midpoint of the diode package;
a first output resistor connected firstly to the linking connector and secondly to the digital input port of the microcontroller via the connecting link;
a second output resistor connected firstly to the digital input port of the microcontroller via the connecting link and secondly to the ground; and
an output capacitor connected firstly to the digital input port of the microcontroller via the connecting link and secondly to the ground.
3. A motor engine control electronic computer, comprising:
a box; and
an electric circuit, mounted in the box, for managing at least one piece of electrical equipment of a vehicle, said electric circuit including a digital connection module for digitally connecting to a piece of electrical equipment of the vehicle and also including a microcontroller with a digital input port,
said digital connection module comprised of:
a linking connector for linking to the electrical equipment;
a connecting link for connecting to the digital input port of the microcontroller;
an input capacitor connected firstly to the linking connector and secondly to ground;
a diode package, connected firstly to a battery voltage of the vehicle and secondly to the ground, the diode package having two diodes linked to each other at a midpoint so as to operate with a common anode for the microcontroller to detect a connection of the electrical equipment to the ground;
an input resistor connected firstly to the linking connector and secondly to the midpoint of the diode package;
a first output resistor connected firstly to the linking connector and secondly to the digital input port of the microcontroller via the connecting link;
a second output resistor connected firstly to the digital input port of the microcontroller via the connecting link and secondly to the ground; and
an output capacitor connected firstly to the digital input port of the microcontroller via the connecting link and secondly to the ground.
4. An electronic computer according to claim 1 , wherein the microcontroller comprises a plurality of digital input ports, and said motor vehicle engine control electronic computer comprises a plurality of digital connection modules, each of said digital connection modules having a link for connecting to one of the digital input ports of the microcontroller.
5. A motor vehicle comprising at least one electronic computer according to claim 1 .
6. An electronic computer according to claim 2 , wherein the microcontroller comprises a plurality of digital input ports, and said motor vehicle engine control electronic computer comprises a plurality of digital connection modules, each of said digital connection modules having a link for connecting to one of the digital input ports of the microcontroller.
7. An electronic computer according to claim 3 , wherein the microcontroller comprises a plurality of digital input ports, and said motor vehicle engine control electronic computer comprises a plurality of digital connection modules, each of said digital connection modules having a link for connecting to one of the digital input ports of the microcontroller.
8. A motor vehicle comprising at least one electronic computer according to claim 2 .
9. A motor vehicle comprising at least one electronic computer according to claim 3 .
10. A motor vehicle comprising at least one electronic computer according to claim 4 .
11. A motor vehicle comprising at least one electronic computer according to claim 6 .
12. A motor vehicle comprising at least one electronic computer according to claim 7 .