CN111497818A - 车辆的停车控制的装置和方法 - Google Patents

车辆的停车控制的装置和方法 Download PDF

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CN111497818A
CN111497818A CN202010074513.2A CN202010074513A CN111497818A CN 111497818 A CN111497818 A CN 111497818A CN 202010074513 A CN202010074513 A CN 202010074513A CN 111497818 A CN111497818 A CN 111497818A
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vehicle
state
control unit
brake
driver
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CN111497818B (zh
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郑熙
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Hyundai Mobis Co Ltd
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Hyundai Mobis Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T7/00—Brake-action initiating means
    • B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
    • B60T7/122—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger for locking of reverse movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/18—Conjoint control of vehicle sub-units of different type or different function including control of braking systems
    • B60W10/182—Conjoint control of vehicle sub-units of different type or different function including control of braking systems including control of parking brakes
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T7/00—Brake-action initiating means
    • B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K20/00—Arrangement or mounting of change-speed gearing control devices in vehicles
    • B60K20/02—Arrangement or mounting of change-speed gearing control devices in vehicles of initiating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
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    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/02—Selector apparatus
    • F16H59/08—Range selector apparatus
    • F16H59/10—Range selector apparatus comprising levers
    • F16H59/105—Range selector apparatus comprising levers consisting of electrical switches or sensors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/20—Preventing gear creeping ; Transmission control during standstill, e.g. hill hold control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
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    • F16H63/3416—Parking lock mechanisms or brakes in the transmission
    • F16H63/3458—Parking lock mechanisms or brakes in the transmission with electric actuating means, e.g. shift by wire
    • F16H63/3466—Parking lock mechanisms or brakes in the transmission with electric actuating means, e.g. shift by wire using electric motors
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Regulating Braking Force (AREA)

Abstract

提供一种用于车辆的停车控制的装置和方法，该方法包括控制单元通过分别从制动开关、压力检测单元和换挡杆检测单元接收制动信号、主缸的压力和换挡杆的位置来确定驾驶员的停车意图的步骤；控制单元通过分别从倾斜度检测单元、车轮速度检测单元和车辆速度检测单元接收倾斜度、车轮速度和车辆速度来确定车辆的状态的步骤；控制单元确定电子停车制动器的状态的步骤；以及控制单元通过EPB驱动单元操作电子停车制动器的步骤。根据用于车辆的停车控制的装置和方法，当自动变速器车辆停在斜坡上时，可以掌握驾驶员的P挡停车意图，检查车辆的速度和电子停车制动器的状态，并允许车辆自动保持停止状态，从而提高行人和驾驶员的安全性。

Description

车辆的停车控制的装置和方法
相关申请的交叉引用
根据35U.S.C.§119(a)，本申请要求要求于2019年1月30日向韩国知识产权局提交的申请号为10-2019-0011758的韩国专利申请的优先权，其全部内容通过引用合并于此。
技术领域
本公开的实施例涉及一种用于车辆的停车控制的装置和方法，并且更具体地，涉及一种用于车辆的停车控制的装置和方法，通过该装置和方法，当自动变速器车辆停在斜坡上时，为了驾驶员的安全，能够检查电子停车制动器的状态，并允许车辆自动保持停止状态。
背景技术
一般地，自动变速器是一种基于诸如车速和节流阀的开度的与车辆行驶有关的变量自动地实现适当的挡位(变速级)的变速器。
通常，车辆的自动变速器连接到换挡杆，用于允许驾驶员指定变速范围，例如P(停车)、R(倒车)、N(空挡)、D(行驶)、+和-，并且换挡杆也被称为变速器齿轮换挡(TGS)杆，该杆将驾驶员的换挡操作与变速器连接起来。
通过操作这种换挡杆，可以确定自动变速器的手动阀的位置，并根据换挡杆的位置形成适当的液压供给管路。手动阀的位置由抑制开关检测，并输入到控制变速器的变速器控制单元(以下称为“TCU”)。
TCU控制自动变速器的液压系统，以便在驾驶员指定的行驶模式下建立适当的挡位。
当这种自动变速器具有手动上挡(+)/下挡(-)功能时，换挡杆的操作位置通过CAN通讯传输到TCU，从而通过操作换挡杆进行诸如当前的挡位保持、升挡和降挡等变速，从而执行到相应目标挡位的变速控制。
此外，在自动变速器的换挡杆中，诸如P、R、N和D之类的换挡杆的位置通过发光显示在PRND指示器的字母部分上，以视觉方式告知驾驶员换挡杆的位置。
近来，线控(SBW)换挡杆在高端汽车和电动汽车中大量使用，并且在这种SBW换挡杆中，操作状态通过通信传递至控制单元。
因此，在具有SBW换挡杆的自动变速器车辆中，当驾驶员通过变速控制装置选择P、R、N或D挡时，仅电信号被传递至变速器以执行相应的变速操作。当驾驶员选择P挡停车时，驱动安装在变速器中的电动机并操作停车棘爪，从而限制了变速器中的齿轮。
本公开的背景技术在2013年5月31日公开的标题为“用于具有线控系统的车辆的控制方法”的韩国专利申请公开第10-2013-0057120号中公开。
在设置有SBW换挡杆的自动变速器车辆中，当停车棘爪由于应力而损坏时，存在即使在斜坡上进行P挡停车也不能使车辆停止的问题。
发明内容
各个实施例旨在提供一种用于车辆的停车控制的装置和方法，通过该装置和方法，当自动变速器车辆停在斜坡上时，为了驾驶员的安全，能够掌握驾驶员的P挡停车意图，检查车辆的速度和电子停车制动器的状态，并允许车辆自动保持停车状态。
在一实施例中，一种用于车辆的停车控制的装置包括：制动开关，被配置为在制动器被操作时输出制动信号；压力检测单元，被配置为检测主缸的压力；换挡杆检测单元，被配置为检测换挡杆的位置；倾斜度检测单元，被配置为检测所述车辆的倾斜度；车轮速度检测单元，被配置为检测所述车辆的车轮速度；车速检测单元，被配置为检测所述车辆的车辆速度；EPB(电子停车制动器)状态检测单元，被配置为检测电子停车制动器的操作状态；EPB驱动单元，被配置为操作所述电子停车制动器；和控制单元，被配置为基于所述制动信号、所述主缸的压力和所述换挡杆的位置来确定驾驶员的停车意图，基于倾斜度、车轮速度和车辆速度来确定所述车辆的状态；并且根据所述EPB状态检测单元检测到的电子停车制动器的操作状态，通过EPB驱动单元操作电子停车制动器，以基本保持车辆的停车状态。
在本公开中，当制动信号被接通，主缸的压力超过预设压力并且换挡杆的位置是P挡时，所述控制单元设置驾驶员的停车意图。
在本公开中，当倾斜度超过预设的坡度，车轮速度超过预设的车轮速度，并且车辆速度超过预设的车辆速度时，所述控制单元将所述车辆的状态设置为车辆速度增加。
在本公开中，在设置驾驶员的停车意图并且将车辆的状态设置为车辆速度增加的情况下，当所述电子停车制动器的操作状态为正常时，所述控制单元操作电子停车制动器。
在另一实施例中，一种用于车辆的停车控制的方法包括：控制单元通过分别从制动开关、压力检测单元和换挡杆检测单元接收制动信号、主缸的压力和换挡杆的位置来确定驾驶员的停车意图的步骤；控制单元通过分别从倾斜度检测单元、车轮速度检测单元和车辆速度检测单元接收倾斜度、车轮速度和车辆速度来确定车辆的状态的步骤；控制单元确定电子停车制动器的状态的步骤；和控制单元根据驾驶员的停车意图、车辆的状态以及电子停车制动器的操作状态，通过EPB驱动单元来操作电子停车制动器的步骤。
在本公开中，在确定驾驶员的停车意图的步骤中，当制动信号被接通，主缸的压力超过预设压力，并且换挡杆的位置为P挡时，控制单元设置驾驶员的停车意图。
在本公开中，在确定车辆的状态的步骤中，当倾斜度超过预设的坡度，车轮速度超过预设的车轮速度，并且车辆速度超过预设的车辆速度时，控制单元将车辆的状态设置为车辆速度增加。
在本公开中，在操作电子停车制动器的步骤中，在设置驾驶员的停车意图并且将车辆的状态设置为车辆速度增加的情况下，当电子停车制动器的操作状态为正常时，所述控制单元操作电子停车制动器。
根据用于车辆的停车控制的装置和方法，当自动变速器车辆停在斜坡上时，可以掌握驾驶员的P挡停车意图，检查车辆的速度和电子停车制动器的状态，并允许车辆自动保持停止状态，从而提高行人和驾驶员的安全性。
附图说明
图1示出了根据本公开实施例的用于车辆的停车控制的装置的结构框图。
图2是用于解释根据本公开实施例的用于车辆的停车控制的方法的流程图。
具体实施方式
如在相关领域中的传统，一些示例性实施例可用功能块、单元和/或模块在附图中示出。本领域普通技术人员将理解，这些块、单元和/或模块由诸如逻辑电路、分立组件、处理器、硬连线电路、存储元件、布线连接等电子(或光学)电路物理地实现。当块、单元和/或模块由处理器或类似硬件实现时，可以使用软件(例如，代码)对它们进行编程和控制，以执行本文讨论的各种功能。可替代地，每个块、单元和/或模块可以由专用硬件或作为专用硬件的组合来实现，以执行一些功能，以及处理器(例如，一个或多个编程的处理器和相关的电路)以执行其他功能。在不背离本发明构思的范围的情况下，一些示例性实施例的每个块、单元和/或模块可以在物理上被分成两个或更多个交互且离散的块、单元和/或模块。此外，在不脱离本发明构思的范围的情况下，一些示例性实施例的块、单元和/或模块可以物理地组合成更复杂的块、单元和/或模块。
在下文中，将参照附图详细描述根据本公开实施例的用于车辆的停车控制的装置和方法。应当注意，附图不是精确的比例，并且可能仅出于描述方便和清楚的目的而夸大了线的粗细或部件的尺寸。此外，本文使用的术语是考虑本公开的功能来定义的，并且可以根据用户或操作员的习惯或意图来改变。因此，应根据本文阐述的全部公开内容对术语进行定义。
图1是根据本公开实施例的用于车辆的停车控制的装置的结构框图。
如图1所示，根据本公开实施例的用于车辆的停车控制的装置可包括制动开关10、压力检测单元20、换挡杆检测单元30、倾斜度检测单元40、车轮速度检测单元50、车速检测单元60，EPB状态检测单元80，EPB驱动单元90和控制单元70。
当驾驶员踩下制动踏板(未示出)以操作制动器时，制动开关10可输出用于接通制动灯(未示出)的制动信号，以识别制动器被操作的状态。
因此，随着制动器的操作，制动开关10将制动信号输出至控制单元70，以掌握驾驶员的制动意图。
压力检测单元20检测主缸的压力并将检测到的压力提供给控制单元70，从而控制单元70可以掌握驾驶员的制动意图的有效性。
换挡杆检测单元30检测换挡杆的位置，并将检测到的位置提供给控制单元70，使得控制单元70可以基于换挡杆的位置来掌握P挡停车意图。
倾斜度检测单元40基于陀螺仪传感器检测车辆的倾斜度，并将检测到的倾斜度提供给控制单元70，从而控制单元70可以掌握在斜坡上的停车意图。
车轮速度检测单元50检测车辆的车轮速度，并将检测到的车轮速度提供给控制单元70，使得控制单元70可以掌握车辆的运动状态。
车速检测单元60可以检测车辆的行驶速度，并将检测到的行驶速度提供给控制单元70，或者将从发动机控制单元(未示出)接收的车速提供给控制单元70。
因此，控制单元70可以确定车辆的运动的有效性。
EPB(电子停车制动器)状态检测单元80检测电子停车制动器(未示出)的操作状态，并将检测到的操作状态提供给控制单元70，以便控制单元70可以在正常状态下操作电子停车制动器。
EPB(电子停车制动器)驱动单元90可通过根据控制单元70的控制信号操作电子停车制动器来允许基本维持车辆的停止状态。
控制单元70可以通过分别从制动开关10、压力检测单元20和换挡杆检测单元30接收制动信号、主缸的压力以及换挡杆的位置来确定驾驶员的停车意图，然后通过分别从倾斜度检测单元40、车轮速度检测单元50和车辆速度检测单元60接收倾斜度、车轮速度和车辆速度来确定车辆的状态，从而根据EPB状态检测单元80检测到的电子停车制动器的操作状态，通过EPB驱动单元90操作电子停车制动器，以基本保持车辆的停止状态。
在此，控制单元70可以首先确定驾驶员的停车意图。例如，当制动信号被接通时，主缸的压力超过预设压力，并且换挡杆的位置为P挡，即，当满足所有条件时，控制单元70可以设置驾驶员的停车意图。
在这种情况下，控制单元70可以通过根据制动信号的状态、主缸的压力状态以及换挡杆的位置状态设置或初始化标记来设置驾驶员的停车意图。
接下来，控制单元70可以确定车辆的状态。例如，当倾斜度超过预设的坡度时，车轮速度超过预设的车轮速度，并且车辆速度超过预设的车辆速度时，控制单元70可以将车辆的状态设置为车辆速度的增加。即，当满足以上所有条件时，控制单元70可以确定车辆正在斜坡上行驶。
在这种情况下，控制单元70可以通过根据倾斜状态、车轮速度是否增加以及车速是否增加设置或初始化标记来设置车辆的状态。
然后，当设置了驾驶员的停车意图并且将车辆的状态设置为车辆速度增加时，控制单元70可以确定车辆在P挡停车状态下在斜坡上行驶，并通过EPB驱动单元90自动操作电子停车制动器，以在电子停车制动器的操作状态正常时基本保持车辆的停止状态。
如上所述，根据用于车辆的停车控制的装置和方法，当自动变速器车辆停在斜坡上时，可以掌握驾驶员的P挡停车意图，检查车辆的速度和电子停车制动器的状态，并允许车辆自动保持停止状态，从而提高行人和驾驶员的安全性。
图2是用于解释根据本公开实施例的用于车辆的停车控制的方法的流程图。
如图2所示，在根据本公开实施例的用于车辆的停车控制的方法中，控制单元70首先通过分别从制动开关10、压力检测单元20和换挡杆检测单元30接收制动信号、主缸的压力和换挡杆的位置来确定驾驶员的停车意图(S10)。
例如，当制动信号被接通时，主缸的压力超过预设压力，并且换挡杆的位置为P挡，即，当满足所有条件时，控制单元70可以设置驾驶员的停车意图。
在这种情况下，控制单元70可以通过根据制动信号的状态、主缸的压力状态以及换挡杆的位置状态设置或初始化标记来设置驾驶员的停车意图。
在步骤S10中确定驾驶员的停车意图之后，控制单元70通过分别从倾斜度检测单元40、车轮速度检测单元50和车辆速度检测单元60接收倾斜度、车轮速度和车辆速度来确定车辆的状态(S20)。
例如，当倾斜度超过预设的坡度时，车轮速度超过预设车轮速度，并且车辆速度超过预设车辆速度时，控制单元70可以将车辆的状态设置为车速增加。即，当满足以上所有条件时，控制单元70可以确定车辆正在斜坡上行驶。
在这种情况下，控制单元70可以通过根据倾斜状态、车轮速度是否增加以及车速是否增加设置或初始化标记来设置驾驶员的车辆的状态。
在步骤S20中确定车辆的状态之后，控制单元70通过EPB状态检测单元80检测电子停车制动器的状态(S30)。
在步骤S30中检测到电子停车制动器的状态之后，控制单元70确定是否设置了驾驶员的停车意图、将车辆的状态设置为车速增加、并且电子停车制动器的操作状态是正常的(S40)。
即，在步骤S40中，控制单元70确定是否存在驾驶员的停车意图、车辆是否在P挡停车状态下行驶以及电子停车制动器的操作状态是否正常。
当在步骤S40的确定结果中满足所有条件时，控制单元70通过操作电子停车制动器自动保持车辆的停止状态(S50)。
然而，当在步骤S40的确定结果中不满足任一条件时，控制单元70不操作电子停车制动器(S60)。
如上所述，根据用于车辆的停车控制的装置和方法，当自动变速器车辆停在斜坡上时，能够掌握驾驶员的P挡停车意图，检查车辆的速度和电子停车制动器的状态，并允许车辆自动保持停止状态，从而提高行人和驾驶员的安全性。
例如，可以用例如方法或过程、装置、软件程序以及数据流或信号来实现本说明书中描述的实现。尽管仅在单一形式的实现方式(例如，仅作为方法讨论)的上下文中进行了讨论，但是所讨论的特征的实现方式也可以其他形式实现(例如，装置或程序)。可以用适当的硬件、软件、固件等来实现该装置。该方法可以在诸如处理器之类的装置中实现，该装置通常是指包括计算机、微处理器、集成电路或可编程逻辑装置的处理装置。处理器包括通信设备，例如计算机、蜂窝电话、便携式/个人数字助理(PDA)、以及其他有助于最终用户之间信息通信的设备。
尽管已经参考附图中图示的实施例描述了本公开，但是本公开的实施例仅用于示例性目的，并且本领域技术人员将理解，各种修改和等同的其他实施例也是可能的。
因此，本公开的真实技术范围应由所附权利要求限定。

Claims (8)

1.一种用于车辆的停车控制的装置，所述装置包括：
制动开关，被配置为在制动器被操作时输出制动信号；
压力检测单元，被配置为检测主缸的压力；
换挡杆检测单元，被配置为检测换挡杆的位置；
倾斜度检测单元，被配置为检测所述车辆的倾斜度；
车轮速度检测单元，被配置为检测所述车辆的车轮速度；
车速检测单元，被配置为检测所述车辆的车辆速度；
电子停车制动器EPB状态检测单元，被配置为检测电子停车制动器的操作状态；
EPB驱动单元，被配置为操作所述电子停车制动器；和
控制单元，被配置为基于所述制动信号、所述主缸的压力和所述换挡杆的位置来确定驾驶员的停车意图，基于所述倾斜度、所述车轮速度和所述车辆速度来确定所述车辆的状态，并且根据所述EPB状态检测单元检测到的所述电子停车制动器的操作状态，通过所述EPB驱动单元操作所述电子停车制动器，以基本保持所述车辆的停车状态。
2.根据权利要求1所述的装置，其中，当所述制动信号被接通，所述主缸的压力超过预设压力，并且所述换挡杆的位置为P挡时，所述控制单元设置所述驾驶员的停车意图。
3.根据权利要求1所述的装置，其中，当所述倾斜度超过预设的坡度，所述车轮速度超过预设的车轮速度，并且所述车辆速度超过预设的车辆速度时，所述控制单元将所述车辆的状态设置为所述车辆速度增加。
4.根据权利要求1所述的装置，其中，在设置所述驾驶员的停车意图并且将所述车辆的状态设置为所述车辆速度增加的情况下，当所述电子停车制动器的操作状态为正常时，所述控制单元操作所述电子停车制动器。
5.一种用于车辆的停车控制的方法，所述方法包括：
控制单元通过分别从制动开关、压力检测单元和换挡杆检测单元接收制动信号、主缸的压力和换挡杆的位置来确定驾驶员的停车意图的步骤；
所述控制单元通过分别从倾斜度检测单元、车轮速度检测单元和车辆速度检测单元接收倾斜度、车轮速度和车辆速度来确定所述车辆的状态的步骤；
所述控制单元确定电子停车制动器的状态的步骤；和
所述控制单元根据所述驾驶员的停车意图、所述车辆的状态以及所述电子停车制动器的操作状态，通过EPB驱动单元来操作所述电子停车制动器的步骤。
6.根据权利要求5所述的方法，其中，在所述确定驾驶员的停车意图的步骤中，当所述制动信号被接通，所述主缸的压力超过预设压力，并且所述换挡杆的位置为P挡时，所述控制单元设置所述驾驶员的停车意图。
7.根据权利要求5所述的方法，其中，在所述确定所述车辆的状态的步骤中，当所述倾斜度超过预设的坡度，所述车轮速度超过预设的车轮速度，并且所述车辆速度超过预设的车辆速度时，所述控制单元将所述车辆的状态设置为所述车辆速度增加。
8.根据权利要求5所述的方法，其中，在所述操作所述电子停车制动器的步骤中，在设置所述驾驶员的停车意图并且将所述车辆的状态设置为所述车辆速度增加的情况下，当所述电子停车制动器的操作状态为正常时，所述控制单元操作所述电子停车制动器。
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