Braking control system and method for vehicle

A braking control and vehicle technology, applied in the field of vehicle braking control system, can solve problems such as regenerative braking torque limitation

Pending Publication Date: 2020-11-20
HYUNDAI MOTOR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This conventional method has limitations on the regenerative braking torque since the regenerative braking torque is determined based only on the chargeable capacity of the main battery
In addition, according to the conventional braking method, when the depression amount of the brake pedal is kept constant, if the regenerative braking torque decreases, the braking torque of the hydraulic brake should be additionally increased, therefore, a separate auxiliary device is required

Method used

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  • Braking control system and method for vehicle
  • Braking control system and method for vehicle
  • Braking control system and method for vehicle

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Embodiment Construction

[0022] It will be understood that the term "vehicle" or "vehicular" or other similar terms as used herein generally includes motor vehicles, for example passenger cars including sport utility vehicles (SUVs), buses, trucks, commercial vehicles of all kinds; includes boats, watercraft of all kinds, aircraft, etc.; and includes hybrid vehicles, electric vehicles, plug-in hybrid electric vehicles, hydrogen powered vehicles, and other alternative fuel vehicles (eg, fuels from non-petroleum sources). As referred to herein, a hybrid vehicle is a vehicle that has two or more sources of power, such as both gasoline-powered and electric vehicles.

[0023] Although the exemplary embodiment is described as using a plurality of units to perform the exemplary process, it should be understood that the exemplary process may also be performed by one or more modules. Additionally, the term controller / control unit should be understood to refer to a hardware device including a memory and a proce...

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Abstract

A braking control system for a vehicle is provided. The system includes a motor providing rotational force to wheels of the vehicle and a first battery storing electric energy for driving the motor. An inverter is connected to the first battery via a DC link terminal and performs a bidirectional power conversion between the DC link terminal and the motor. A DC converter is connected to the DC linkterminal to down-convert a voltage of the DC link terminal and output the down-converted voltage. A second battery is supplied with the voltage converted by the DC converter and has a voltage lower than that of the first battery. A controller operates the inverter and the DC converter to charge regenerative braking energy generated from the motor during braking of the vehicle in the first batteryand the second battery.

Description

technical field [0001] Exemplary embodiments of the present invention relate to a brake control system and method for a vehicle, and more particularly, to a brake control system and method for a vehicle by using a main battery provided in an eco-friendly vehicle Both the battery and the auxiliary battery are used to determine the regenerative braking torque of the vehicle, thereby improving the fuel efficiency of the vehicle. Background technique [0002] With increasing problems of global warming and environmental pollution, research and development of eco-friendly vehicles capable of reducing environmental pollution in the automotive industry is being actively carried out, and the market for them is gradually expanding. Many eco-friendly vehicles use electric motors that generate power from electricity instead of engines that burn conventional fossil fuels, and electric vehicles, hybrid vehicles, plug-in hybrid vehicles, hydrogen battery vehicles, etc. are gradually being ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L7/10B60L7/18
CPCB60L7/10B60L7/18B60L7/14B60L7/26B60L58/20Y02T10/70Y02T10/7072Y02T90/14B60L53/24B60L58/21B60L50/51B60W20/14B60W30/18127B60L58/12B60W10/26B60K7/0007B60L2210/10B60L2250/26B60L2240/547B60Y2200/91B60Y2200/92Y02T10/72Y02T90/40
Inventor 文孝植崔帝勋文喜圣金润浩宋成根闵敬仁金裕锡
Owner HYUNDAI MOTOR CO LTD
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