US 2026/0238032 A1 · Charging Management Apparatus, Charging Management Method, And Electric Vehicle

Abstract

A charging management apparatus includes a main relay connected between a positive electrode terminal of a battery pack and a charging terminal of a charging connector, a current regulator connected in parallel to the main relay and including a precharge relay and a resistance regulation circuit connected in series, a battery pack voltage sensor, a battery pack current sensor, and a controller to control the main relay is into an on state and the precharge relay into an off state in response to a first switching condition while the main relay is in the off state, the resistance regulation circuit at a first resistance value and the precharge relay is in the on state, and to control the resistance regulation circuit to a second resistance value, the precharge relay into the on state and the main relay into the off state, in response to a second switching condition.

Claims20

Dependent claims

A charging management apparatus the charging management apparatus comprising:

a main charging path connected between a positive electrode terminal of a battery pack and a first charging terminal of a charging connector, wherein the main charging path includes a main relay for opening and closing the main charging path, and is configured for fast charging of the battery pack;
and
a current regulator connected between the positive electrode terminal of the battery pack and the first charging terminal of the charging connect to, wherein the current regulator includes:
a first electrical path having a first resistance and a first switch, wherein the first resistance is configured for pre-charging of the battery pack when the first switch is closed;
and
a second electrical path including a second resistance and a second switch, wherein the second resistance is greater than the first resistance and is configured for trickle charging of the battery pack when the second switch is closed,
wherein the main charging path has a third resistance lower than each of the first resistance and the second resistance.

4 more elements

A charging management method using a charging management apparatus, the method comprising:

monitoring at least one of a voltage or a current of a battery pack;
and control operation of a current regulator and a main relay based on the monitored voltage, wherein the current regulator connects the positive electrode terminal of the battery pack and the first charging terminal of the charging connector, and
wherein the main relay connects a positive electrode terminal of the battery pack and a first charging terminal of a charging connector over a main charging path, and wherein the main charging path includes a main relay for opening and closing the main charging path, and is configured for fast charging of the battery pack, and
wherein control of the current regulator includes controlling each of:
a first electrical path having a first resistance and a first switch, wherein the first resistance is configured for pre-charging of the battery pack when the first switch is closed;
and;
a second electrical path including a second resistance and a second switch, wherein the second resistance is greater than the first resistance and is configured for trickle charging of the battery pack when the second switch is closed, and
wherein the main charging path has a third resistance lower than each of the first resistance and the second resistance.

5 more elements

Dependencies are inferred from the claim text.

Charging Management Apparatus, Charging Management Method, And Electric Vehicle

Life of this patent

Charging Management Apparatus, Charging Management Method, And Electric Vehicle

Life of this patent

Abstract

Claims20