US-12623571-B2 - Power control apparatus and vehicle having the same

US12623571B2US 12623571 B2US12623571 B2US 12623571B2US-12623571-B2

Abstract

An embodiment power control apparatus includes a power converter configured to convert a voltage supplied from a first battery into a voltage lower than the voltage supplied from the first battery, a power distributor configured to distribute power supplied from the power converter and supply the distributed power to a braking device, a steering device, a sensor, and an autonomous driving control device in duplicate, and a battery management device configured to control a charging of a second battery using the power supplied from the power distributor.

Inventors

Sehoon Park
Hyunsock Yi

Assignees

HYUNDAI MOTOR COMPANY
KIA CORPORATION
KYUNGSHIN CORP.

Dates

Publication Date: 20260512
Application Date: 20230802
Priority Date: 20221017

Claims (20)

1 . A power control apparatus comprising: a power converter configured to convert a voltage supplied from a first battery into a voltage lower than the voltage supplied from the first battery; a power distributor configured to distribute power supplied from the power converter and supply the distributed power to a braking device, a steering device, a sensor, and an autonomous driving control device in duplicate; and a battery management device configured to control a charging of a second battery using the power supplied from the power distributor; wherein the power distributor is further configured to: monitor information related to at least one of power, voltage, and current of the power converter; determine whether a power line between the power converter and the power distributor is disconnected based on the monitored information; and in response to a determination that the power line between the power converter and the power distributor is disconnected, transmit disconnection information on the power line between the power converter and the power distributor to the autonomous driving control device.
2 . The power control apparatus of claim 1 , further comprising a central control device configured to receive power from the power distributor and communicate with the power converter, the autonomous driving control device, and the power distributor, wherein the power distributor is further configured to control the second battery to supply the power of the second battery to the central control device in response to a message not being received from the central control device.
3 . The power control apparatus of claim 2 , wherein, while the power of the second battery is being supplied to the central control device, the power distributor is further configured to control the second battery to cut off the power supply of the second battery in response to a message for power input of the power converter being received from the central control device.
4 . The power control apparatus of claim 3 , wherein the power distributor is further configured to: in response to a message for power non-input of the power converter being received, determine that a disconnection has occurred in a power line between the power converter and the central control device; and transmit disconnection information regarding the power line between the power converter and the central control device to the autonomous driving control device.
5 . The power control apparatus of claim 1 , wherein the power distributor further comprises: a first distributor connected to the power converter; a second distributor connected to the first distributor and configured to supply the power to the braking device, the steering device, the sensor, and the autonomous driving control device; and a third distributor connected to the second distributor and configured to supply the power to the braking device, the steering device, the sensor, and the autonomous driving control device.
6 . The power control apparatus of claim 5 , wherein: the second distributor is configured to supply the power to an emergency braking control device of the braking device; and the third distributor is configured to supply the power to a parking brake control device of the braking device.
7 . The power control apparatus of claim 5 , further comprising a central control device configured to receive the power from the first distributor or the second battery and communicate with the power converter, the autonomous driving control device, the second distributor, and the third distributor, wherein the third distributor is further configured to: monitor the power converter, the second distributor, and the third distributor; determine whether a power line of a plurality of power lines connected between the power converter and the first, second, and third distributors is disconnected based on the monitored information regarding the power converter, the second distributor, and the third distributor; and in response to a determination that the power line is disconnected, transmit disconnection information to the autonomous driving control device.
8 . The power control apparatus of claim 7 , wherein the third distributor further comprises a switch connected to the second battery, and wherein the third distributor is further configured to: control turning-off of the switch upon determining that the second battery is in a discharging mode; and determine whether a power line between the first distributor and the second distributor or a power line between the second distributor and the third distributor is disconnected based on the monitored information on the second distributor.
9 . The power control apparatus of claim 7 , wherein the third distributor is further configured to: in response to a message not being received from the central control device, control the second battery to supply the power of the second battery to the central control device; in response to a message for power input of the power converter being received from the central control device while the power of the second battery is being supplied to the central control device, control the second battery to cut off the power supply of the second battery; and in response to a message for power non-input of the power converter being received, control the second battery to maintain the power supply of the second battery.
10 . The power control apparatus of claim 7 , wherein the third distributor is further configured to: monitor a state of charge of the second battery; and determine whether a power line between the second battery and the third distributor is disconnected based on the state of charge of the second battery.
11 . A vehicle comprising: a braking device; a steering device; a sensor; an autonomous driving control device configured to control the braking device or the steering device based on information detected by the sensor; and a power supply device comprising a first battery, a second battery configured to output a voltage lower than a voltage of the first battery, and a power control device configured to convert and distribute the voltage of the first battery and configured to supply power from the converted and distributed voltage to the braking device, the steering device, the sensor, and the autonomous driving control device in duplicate, wherein the power control device comprises: a power converter configured to convert the voltage supplied from the first battery into the voltage lower than the voltage of the first battery; and a power distributor configured to distribute power supplied from the power converter and supply the distributed power to the braking device, the steering device, the sensor, and the autonomous driving control device in duplicate, and wherein the power distributor is further configured to: monitor information related to at least one of power, voltage, and current of the power converter; determine whether a power line between the power converter and the power distributor is disconnected based on the monitored information; and in response to a determination that the power line between the power converter and the power distributor is disconnected, transmit disconnection information on the power line between the power converter and the power distributor to the autonomous driving control device.
12 . The vehicle of claim 11 , wherein the power control device further comprises: a central control device configured to receive the power from the power distributor and communicate with the power converter, the autonomous driving control device, and the power distributor; and a battery management device configured to control a charging of the second battery using the power supplied from the power distributor.
13 . The vehicle of claim 12 , wherein the power distributor further comprises: a first distributor connected to the power converter; a second distributor connected to the first distributor and configured to supply the power to the braking device, the steering device, the sensor, and the autonomous driving control device; and a third distributor connected to the second distributor and configured to supply the power to the braking device, the steering device, the sensor, and the autonomous driving control device.
14 . The vehicle of claim 13 , wherein the third distributor is configured to: monitor at least one of power, voltage, and current of the power converter; determine whether a power line between the power converter and the first distributor is disconnected based on the monitored information; and in response to a determination that the power line between the power converter and the first distributor is disconnected, transmit disconnection information on the power line between the power converter and the first distributor to the autonomous driving control device.
15 . The vehicle of claim 13 , wherein the third distributor further comprises a switch connected to the second battery, and wherein the third distributor is further configured to: control turning-off of the switch in response to a determination that the second battery is in a discharging mode; and determine whether a power line between the first distributor and the second distributor or a power line between the second distributor and the third distributor is disconnected based on monitored information related to the second distributor.
16 . The vehicle of claim 13 , wherein the third distributor is further configured to: in response to a message not being received from the central control device, control the second battery to supply the power of the second battery to the central control device; in response to a message for power input of the power converter being received from the central control device while the power of the second battery is being supplied supplying to the central control device, control the second battery to cut off the power supply of the second battery; and in response to a message for power non-input of the power converter being received, control the second battery to maintain the power supply of the second battery.
17 . The vehicle of claim 16 , wherein in response to the message for power non-input of the power converter being received, the third distributor is further configured to transmit disconnection information on a power line between the first distributor and the central control device to the autonomous driving control device.
18 . The vehicle of claim 13 , wherein the third distributor is further configured to: monitor a state of charge of the second battery in response to the second battery being in a charging mode; determine whether a power line between the second battery and the third distributor is disconnected based on the state of charge of the second battery; and determine the charging mode based on a direction of current of the second battery.
19 . The vehicle of claim 13 , wherein the braking device comprises an emergency braking control device configured to receive the power from the second distributor and a parking brake control device configured to receive the power from the third distributor.
20 . A power control apparatus comprising: a power converter configured to convert a voltage supplied from a first battery into a voltage lower than the voltage supplied from the first battery; a power distributor comprising a first distributor connected to the power converter, a second distributor connected to the first distributor and configured to supply power to a braking device, a steering device, a sensor, and an autonomous driving control device, and a third distributor connected to the second distributor and configured to supply the power to the braking device, the steering device, the sensor, and the autonomous driving control device; and a battery management device configured to control a charging of a second battery using the power supplied from the power distributor.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application claims the benefit of Korean Patent Application No. 10-2022-0133071, filed on Oct. 17, 2022, which application is hereby incorporated herein by reference. TECHNICAL FIELD The present disclosure relates to a power control apparatus and a vehicle having the same. BACKGROUND Generally, vehicles include various electrical components for protecting occupants and providing convenience and fun to the occupants, one or more batteries for supplying power to the electrical components, and a generator for producing power and supplying the generated power to the electrical components and the one or more batteries. Electrical components of a vehicle may be classified into high-power electrical components requiring high voltage, such as compressors and heaters for air conditioning, and low-power electrical components requiring low voltage, such as seat heating wires, steering wheel heating wires, and seat ventilators. Batteries, like the classification of electrical components, may include a first battery for supplying high-voltage power to the high-power electrical components and a second battery for supplying low-voltage power to the low-power electrical components. Furthermore, vehicles may further include a power converter for converting power from the first battery into low-voltage power and supplying the converted low-voltage power to the second battery and a divider for supplying power from the second battery to the low-power electric components. Conventionally, vehicles experience difficulty in supplying power from the second battery to low-power electric components when a distributor fails, leading to stoppage of the operation of the low-power electric components. For an autonomous vehicle, autonomous driving thereof is stopped when operation of electrical components fails. In particular, if the failed electric components are directly related to driving devices, such as an engine device, transmission device, braking device, and steering device of the vehicle, it may lead to a vehicle accident. Vehicles known in the art have a disadvantage in recognizing a place where a power line is disconnected when operation of at least one of a plurality of electrical components fails. SUMMARY The present disclosure relates to a power control apparatus and a vehicle having the same. Particular embodiments relate to a power control apparatus for diagnosing disconnection of a power line and a vehicle having the same. An embodiment of the disclosure provides a power control apparatus configured for supplying power to a steering device, a braking device, one or more sensors, and an autonomous driving control device in a dual manner, recognizing a disconnection point when at least one disconnection occurs among a plurality of power lines, and providing information on the recognized disconnection point to the autonomous driving control device, and a vehicle having the same. Another embodiment of the disclosure provides a power control apparatus configured for supplying power from a second battery in response to a point where a power line is disconnected being a central control device, and a vehicle having the same. Additional embodiments of the disclosure will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the disclosure. In accordance with an embodiment of the disclosure, a power control apparatus includes a power converter configured to convert a voltage supplied from a first battery into a voltage lower than the voltage of the first battery, a power distributor configured to distribute power supplied from the power converter and supply the distributed power to a braking device, a steering device, one or more sensors, and an autonomous driving control device in duplicate, and a battery management device configured to control a charging of a second battery using the power supplied from the power distributor. The power control apparatus may include a central control device configured to receive power from the power distributor and communicate with the power converter, the autonomous driving control device, and the power distributor. The power distributor may control the second battery to supply the power of the second battery to the central control device in response to a message not being received from the central control device. The power distributor may control, while the power of the second battery is being supplied to the central control device, the second battery to cut off the power supply of the second battery in response to a message for power input of the power converter being received from the central control device. The power distributor may determine, in response to a message for power non-input of the power distributor being received, that a disconnection has occurred in a power line between the power converter and the central control device and may transmit disconnection