Vehicular power control system, wire harness, and vehicular power control device

Patent metadata

Field	Value
Publication number	US-10259407-B2
Application number	US-201514834996-A
Country	US
Kind code	B2
Filing date	Aug 25, 2015
Priority date	Aug 26, 2014
Publication date	Apr 16, 2019
Grant date	Apr 16, 2019

Abstract

A vehicular power control system for supplying electric power from a power source of a vehicle to respective ones of a plurality of loads or electronic control units is provided. The vehicular power control system includes a power distribution unit, a customized information storing unit and a power control unit. The power distribution unit receives the electric power and distributes the electric power to a plurality of systems. The customized information storing unit stores customized information in which operation specifications of the plurality of loads or electronic control units are determined. The power control unit controls distribution of electric power to the respective ones of the plurality of loads or electronic control units by the power distribution unit, on the basis of the operation specifications determined in the customized information.

First claim

What is claimed is:

1. A vehicular power control system for supplying electric power from a power source of a vehicle to respective ones of a plurality of loads or electronic control units, the vehicular power control system comprising:
a power distribution unit that receives the electric power and distributes the electric power to the respective ones of the plurality of loads or electronic control units;
a customized information storing unit that stores customized information that includes operation specifications of the plurality of loads or electronic control units; and
a power control unit that controls distribution of electric power to the respective ones of the plurality of loads or electronic control units by the power distribution unit, on the basis of the operation specifications of the customized information, wherein
the power control unit controls values of distribution voltages above zero volts that are supplied to the respective ones of the plurality of loads or electronic control units, on the basis of the operation specifications of the customized information.

2. The vehicular power control system according to claim 1 , wherein the power distribution unit further comprises at least one from among a voltage converter circuit and a voltage stabilizing circuit, and
the electric power flows through the at least one from among the voltage converter circuit and the voltage stabilizing circuit, on the basis of an input control signal supplied by the power control unit to the power distribution unit, such that the power control unit controls the values of the distribution voltages that are supplied to the respective ones of the plurality of loads or electronic control units, on the basis of the operation specifications of the customized information.

3. The vehicular power control system according to claim 1 ,
wherein the power control unit identifies and selects types of load driving signals to the respective ones of the plurality of loads or electronic control units, on the basis of the operation specifications of the customized information, the power control unit configured to identify and select the types of load driving signals as ON/OFF signals and PWM signals.

4. The vehicular power control system according to claim 3 , wherein the customized information includes information on the types of the load driving signals for supplying to the representative ones of the plurality of loads or electronic control units.

5. The vehicular power control system according to claim 1 , wherein the power control unit specifies limiting thresholds of electric currents or voltages to the respective ones of the plurality of loads or electronic control units, on the basis of the operation specifications of the customized information, and
when occurrence of an abnormality has been detected in accordance with comparison results between the limiting thresholds and the measurement values of the electric currents or the voltages to the respective ones of the plurality of loads or electronic control units, the power control unit controls so as to cut off distribution of electric power to a corresponding one of the loads or the electronic control units.

6. The vehicular power control system according to claim 1 , wherein the power distribution unit includes semiconductor switches.

7. The vehicular power control system according to claim 1 , wherein the power control unit includes a data communication function of performing a data communication between the electronic control units, and rewrites the customized information stored by the customized information storing unit, in accordance with the operation specifications notified from the electronic control units.

8. The vehicular power control system according to claim 1 , wherein the power distribution unit comprises at least one switching circuit, and
the power control unit controls the at least one switching circuit, on the basis of the operation specifications of the customized information, such that the power control unit controls the values of the distribution voltages that are supplied to the respective ones of the plurality of loads or electronic control units.

9. A wire harness system for supplying electric power from a power source of a vehicle to respective ones of a plurality of loads or electronic control units, the wire harness system comprising:
a power distribution unit that receives the electric power and distributes the electric power to the respective ones of the plurality of loads or electronic control units;
a customized information storing unit that stores customized information that includes operation specifications of the plurality of loads or electronic control units; and
a power control unit that controls distribution of electric power to the respective ones of the plurality of loads or electronic control units by the power distribution unit, on the basis of the operation specifications of the customized information,
wherein the power control unit controls values of distribution voltages above zero volts that are supplied to the respective ones of the plurality of loads or electronic control units, on the basis of the operation specifications of the customized information.

10. A vehicular power control device for supplying electric power from a power source of a vehicle to respective ones of a plurality of loads or electronic control units, the vehicular power control device comprising:
a power distribution unit that receives the electric power and distributes the electric power to the respective ones of the plurality of loads or electronic control units and comprises at least one from among a voltage converter circuit and a voltage stabilizing circuit;
a customized information storing unit that stores customized information that includes operation specifications of the plurality of loads or electronic control units; and
a power control unit that controls distribution of electric power to the respective ones of the plurality of loads or electronic control units by the power distribution unit, on the basis of the operation specifications of the customized information,
wherein the power control unit controls values of distribution voltages above zero volts that are supplied to the respective ones of the plurality of loads or electronic control units, on the basis of the operation specifications of the customized information.

Assignees

• Yazaki Corp

Inventors

• Iwasaki Katsuyuki
• Masui Hideaki

Classifications

• B60R16/03 Primary

  for supply of electrical power to vehicle subsystems {or for (circuit arrangements for charging batteries H02J7/00)} · CPC title

• B60R16/033 Primary

  characterised by the use of electrical cells or batteries (for propulsion puposes B60K1/04; supplying batteries to, or removing batteries from, vehicles B60S5/06; testing of charge state G01R31/36) · CPC title