US 11,235,780 B2 · Electronic control device, in-vehicle system, and power supply control method

Abstract

A transient increase/decrease of power supplied to a reconfiguration circuit to be a logic circuit whose circuit configuration can be changed is reduced. An autonomous traveling control ECU has a reconfiguration circuit, a function control unit, a power supply circuit, and a power supply control unit. The reconfiguration circuit is a reconfigurable logic circuit. The function control unit determines an operation mode of the reconfiguration circuit on the basis of a mode determination signal and controls a reconfiguration of the reconfiguration circuit on the basis of a determination result. The power supply circuit supplies power to the reconfiguration circuit. The power supply control unit controls the power supply circuit. The power supply control unit 206 controls a load current generated by the power supply circuit before a load variation of the reconfiguration circuit, on the basis of power supply control information to be information for controlling the power supply circuit.

Claims14

Dependent claims

An electronic control device, comprising:

a reconfiguration circuit which is a reconfigurable logic circuit;
wherein the electronic control device is configured to:
determine an operation mode of the reconfiguration circuit, on the basis of a mode determination signal input from outside the electronic control device indicative of a traveling mode of a vehicle;
control a reconfiguration of the reconfiguration circuit on the basis of a determination result;
control a power supply circuit which supplies a power supply voltage to the reconfiguration circuit;
control a supply current generated by the power supply circuit before a load variation of the reconfiguration circuit, on the basis of power supply control information for controlling the power supply circuit;
monitor the power supply voltage supplied to the reconfiguration circuit from a switching power supply circuit;
compare the monitored power supply voltage and a setting voltage previously set in the power supply control information;
and
update the power supply control information as stored in a power supply control database, according to a difference between the monitored power supply voltage and the setting voltage.

7 more elements

An in-vehicle system having an autonomous traveling control device for controlling autonomous traveling of a vehicle,

wherein the autonomous traveling control device has a reconfiguration circuit which is a reconfigurable logic circuit, and the autonomous traveling control device is configured to:
determine an operation mode of the reconfiguration circuit on the basis of a mode determination signal indicative of a traveling mode when the vehicle travels autonomously;
control a reconfiguration of the reconfiguration circuit on the basis of a determination result;
supply a power supply voltage to the reconfiguration circuit;
control the power supply circuit;
control a supply current generated by the power supply circuit before a load variation of the reconfiguration circuit, on the basis of power supply control information for controlling the power supply circuit;
monitor the power supply voltage supplied to the reconfiguration circuit from a switching power supply circuit;
compare the monitored power supply voltage and a setting voltage previously set in the power supply control information;
and
update the power supply control information stored in a power supply control database, according to a difference between the monitored power supply voltage and the setting voltage.

7 more elements

Dependencies are inferred from the claim text.

Electronic control device, in-vehicle system, and power supply control method

Life of this patent

Electronic control device, in-vehicle system, and power supply control method

Life of this patent

Abstract

Claims14