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Battery recharge notification and automatic recharge

A battery, low-voltage technology, applied in battery circuit devices, electric vehicle charging technology, battery/battery traction, etc., can solve problems such as HEV cannot move

Active Publication Date: 2018-05-25
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some cases, if the LV battery is discharged or malfunctions, the HEV may not be able to move

Method used

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  • Battery recharge notification and automatic recharge
  • Battery recharge notification and automatic recharge
  • Battery recharge notification and automatic recharge

Examples

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Embodiment Construction

[0015] As required, specific embodiments of the invention are disclosed herein; however, it is to be understood that the disclosed embodiments are merely exemplary of the invention, which may be embodied in various and alternative forms. The figures are not necessarily to scale; some features may be exaggerated or minimized to show details of particular components. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present invention.

[0016] When the LV battery has been discharged to a low state of charge (SoC), the HEV may not start. When this happens, the vehicle is declared undrivable, and the customer (or dealer) may have to jump start the vehicle or tow the vehicle to a repair facility.

[0017] Furthermore, if the DC / DC converter from the high-voltage system to the low-voltage system fails, the autonomous vehicle re...

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PUM

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Abstract

The disclosure relates to battery recharge notification and automatic recharge. A vehicle includes a low-voltage battery, a high-voltage battery, and a converter that decreases voltage provided from the high-voltage battery to the low-voltage battery. A system controller of the vehicle is programmed to use the converter, in a key-off cycle, to charge the low-voltage battery a calibrated number oftimes that the low-voltage battery drops below a predefined state-of-charge threshold, and send a wireless notification a subsequent time the low-voltage battery drops below the threshold. A notification is sent to a predefined contact address when a periodically computed state of charge of a low-voltage battery of a vehicle falls below a predefined threshold. Using a converter, voltage provided from a high-voltage battery of the vehicle to the low-voltage battery is decreased to charge the low-voltage battery responsive to receipt from the contact address of a response indicating approval ofthe charge.

Description

technical field [0001] Aspects of the present disclosure generally relate to battery recharge notification and battery automatic recharging. Background technique [0002] A hybrid electric vehicle (HEV) may include a high voltage (HV) battery system and a low voltage (LV) battery system. The HV battery system may include a traction battery for driving an electric motor to propel the vehicle. Low voltage systems may include low voltage batteries on which the vehicle's headlights, door actuators, and other electrical systems are dependent, independent of the traction motor. Many HEVs rely on the LV battery system to actuate the closure of the electrical contacts connecting the HV battery to the electrified powertrain. In some cases, if the LV battery is discharged or fails, the HEV may not be able to move. Contents of the invention [0003] In one or more illustrative embodiments, a vehicle includes: a low voltage battery; a high voltage battery; a converter such that a v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L11/18B60L3/00
CPCB60L58/10B60L3/0046H02J7/0048H02J7/0014H04W4/40B60L2240/44B60L2250/10B60L2250/16B60L50/61B60L50/16B60L58/12B60L58/20H02J7/1423B60K6/28B60W10/24B60W10/26B60W20/14H04W4/14H04L67/12B60W20/13B60W50/14B60W2756/10B60W2556/45H02J2310/48Y02D30/70Y02T10/62Y02T10/70Y02T10/7072Y02T90/14H04M2203/45
Inventor 大卫·安东尼·赛曼尼德里克·哈特尔
Owner FORD GLOBAL TECH LLC