CN103895697B - 一种电动汽车四轮独立转向底盘系统及其线控转向机构 - Google Patents

一种电动汽车四轮独立转向底盘系统及其线控转向机构 Download PDF

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CN103895697B
CN103895697B CN201410151322.6A CN201410151322A CN103895697B CN 103895697 B CN103895697 B CN 103895697B CN 201410151322 A CN201410151322 A CN 201410151322A CN 103895697 B CN103895697 B CN 103895697B
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徐国卿
林桂林
刘玢玢
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Shenzhen Institute of Advanced Technology of CAS
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G3/00Resilient suspensions for a single wheel
    • B60G3/18Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram
    • B60G3/20Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram all arms being rigid
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D5/00Power-assisted or power-driven steering
    • B62D5/04Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
    • B62D5/0418Electric motor acting on road wheel carriers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D7/00Steering linkage; Stub axles or their mountings
    • B62D7/06Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins
    • B62D7/14Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00Indexing codes relating to suspension types
    • B60G2200/40Indexing codes relating to the wheels in the suspensions
    • B60G2200/44Indexing codes relating to the wheels in the suspensions steerable

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  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
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  • Power Steering Mechanism (AREA)

Abstract

一种电动汽车四轮独立转向底盘系统及其线控转向机构,其中线控转向机构包括两根转向拉杆、转向动力单元和两组传动单元;转向拉杆水平设置,其靠近车轮的一端与悬架车轮总成的转向节铰接,车轮所在平面垂直于转向拉杆时两根转向拉杆相对于车轮的竖直径向对称;转向动力单元与电动汽车的电子控制单元电连接,转向动力单元具有速比相同且动力输出方向相反的两级动力输出端;两组传动单元的动力输入端分别与转向动力单元的两级动力输出端连接,两组传动单元的动力输出端分别与两根转向拉杆远离车轮的一端连接,驱动转向拉杆水平往复运动,带动车轮摆动。本发明的电动汽车四轮独立转向底盘系统及其线控转向机构,车轮转向稳定性好、安全可靠、狭小空间内机动性好。

Description

一种电动汽车四轮独立转向底盘系统及其线控转向机构
技术领域
本发明属于电动汽车技术领域,特别涉及一种电动汽车四轮独立转向底盘系统及其线控转向机构。
背景技术
为应对日益突出的燃油供求矛盾和环境污染问题,以电动汽车为主的新能源汽车成为了国际汽车产业的发展方向。近些年,随着电驱动技术和线控技术的发展,集成了轮毂电机和线传转向系统(或称为线控转向系统,Steering-By-WireSysterm,简称SBW)的高机动性电动车辆得到了极大的关注。其中,线控转向系统是为了满足汽车的易操纵性设计发展而来的,它是继电动助力转向系统(ElectricPowerSteering,简称EPS)后发展起来的新一代转向系统,具有比EPS操纵稳定性更好的特点,它取消了转向盘与转向轮之间的机械连接,完全由电能实现转向,彻底摆脱了传统转向系统所固有的限制,提高了汽车的安全性和驾驶的方便性。这类采用线控方式独立转向装置的车辆,可独立转动每个车轮,实现原地转向及蟹行等功能,大大提高了车辆在狭小空间里的机动性。
目前,现有的四轮独立转向技术,多采用电动机通过减速装置直接驱动转向主销,实现大范围的车轮偏转角度,以拓展车辆的机动性。如中国专利文献CN103079932A公开了一种线控转向式转向装置,其构成为方向盘转向装置尽可能紧凑地收纳在车辆的车轮罩内的程度,在设置有与转向输入装置机械分离的方向盘转向装置并且基于来自转向输入装置的输入信号控制上述方向盘转向装置的线控转向式转向装置中,上述方向盘转向装置构成为包括:经由齿轮盒固定于转向轮的转向节的方向盘转向电机、固定于上臂的方向盘转向轴、固定于该方向盘转向轴的蜗轮、与上述蜗轮啮合的蜗杆和收纳这些齿轮的齿轮盒。再如中国专利文献CN103072627A公开了一种四轮独立转向的电动底盘,包括:车轮、电动轮毂、转向轴套、步进电机座、转向轴、车架、步进电机、蜗轮蜗杆减速机构,电动轮毂安装在轮胎中,转向轴套与车架之间通过焊接连接,转向轴通过一对圆锥滚子轴承与转向轴套配合,转向轴与电动轮毂通过连接装置固定连接。但是上述这类采用驱动转向主销使车轮偏转的方式,需要将转向主销与减速装置等都设置在转向节上,造成车辆悬架系统结构复杂、零部件多以及在车上布置困难等问题,同时也增加了悬架系统的惯性质量,影响车辆行驶的舒适性。
为此,现有技术中又出现了一种可以采用虚转向主销的悬架系统,如中国专利文献CN102085878A公开了一种线控转向装置,其在车辆转弯时,通过使车轮向左或者向右转弯而执行转向操作,包括:拉杆,具有枢接于车轮的转向节的一端;接合单元,该接合单元可旋转的安装在车身的副车架,与该拉杆的另一端连接,并且将扭矩的旋转方向从第一旋转方向转换到与第一旋转方向大体上垂直的第二旋转方向,以使该拉杆从接合单元可滑动地移动并控制车轮的转向角度;以及电动机单元,该电动机单元固接于副车架,并根据车辆ECU的控制信号提供扭矩给该接合单元,该扭矩的旋转方向与所述第一旋转方向相同或者与所述第一旋转方向相反。但是,上述这种线控转向系统采用单边拉杆推拉车轮使其转向,车轮转向的平稳性较差,影响驾驶乘坐的舒适感和安全性,另外上述结构采用的是皮带轮传动方式,由于皮带轮使用寿命较短,需要经常更换维护,不利于车辆的安全运行。
发明内容
为此,本发明所要解决的技术问题在于现有电动汽车四轮独立转向底盘系统的线控转向装置转向稳定性较差、传动结构使用寿命较短、不利于车辆安全运行,进而提供一种车轮转向稳定性好、安全可靠、狭小空间内机动性好的电动汽车四轮独立转向底盘系统及其线控转向机构。
为解决上述技术问题,本发明采用的技术方案为:
一种电动汽车四轮独立转向底盘系统,包括线控转向机构和悬架车轮总成;所述悬架车轮总成包括安装于车轮内侧的转向节;所述线控转向机构包括,
两根转向拉杆,水平设置,其靠近所述车轮的一端与所述转向节铰接,所述车轮所在平面垂直于所述转向拉杆时两根所述转向拉杆相对于所述车轮的竖直径向对称,所述车轮的轮辋内设置有轮毂电机;
转向动力单元,设置于底盘车架上,与所述电动汽车的电子控制单元电连接,所述转向动力单元具有速比相同且动力输出方向相反的两级动力输出端;
两组传动单元,两组所述传动单元的动力输入端分别与所述转向动力单元的两级动力输出端连接,两组所述传动单元的动力输出端分别与两根所述转向拉杆远离所述车轮的一端连接,以驱动所述转向拉杆水平往复运动,进而带动所述车轮摆动。
上述电动汽车四轮独立转向底盘系统中,所述传动单元包括滚珠丝杆和通过螺纹套装于所述滚珠丝杆上的滑块,所述滚珠丝杆通过支座安装于所述底盘车架上,所述滚珠丝杆远离所述车轮的一端与所述转向动力单元的动力输出端连接,所述滑块与所述转向拉杆远离所述车轮的一端铰接,所述滚珠丝杆的旋转运动带动所述滑块沿所述滚珠丝杆的长度方向往复滑动,进而带动所述转向拉杆水平往复运动。
上述电动汽车四轮独立转向底盘系统中,所述支座上设置有导轨,所述滚珠丝杆的旋转运动带动所述滑块沿所述导轨往复滑动,所述导轨的长度方向与所述滚珠丝杆的长度方向平行。
上述电动汽车四轮独立转向底盘系统中,所述转向动力单元包括转向电机和连接所述转向电机输出轴的减速器,所述减速器具有速比相同且旋转方向相反的两级动力输出端,所述减速器的两级动力输出端将扭矩分别输出给两个所述滚珠丝杆。
上述电动汽车四轮独立转向底盘系统中,所述减速器与所述滚珠丝杆之间通过联轴器连接。
上述电动汽车四轮独立转向底盘系统中,所述转向电机根据所述电子控制单元的控制信号提供相应的扭矩。
上述电动汽车四轮独立转向底盘系统中,所述转向拉杆靠近所述车轮的一端通过第一球铰与所述转向节铰接,所述转向拉杆远离所述车轮的一端通过第二球铰与所述滑块铰接。
上述电动汽车四轮独立转向底盘系统中,所述悬架车轮总成采用双横臂独立悬架,还包括上横臂、下横臂及减振器,所述上横臂和所述下横臂与车体安装固定,所述减振器安装在所述下横臂上。
一种上述电动汽车四轮独立转向底盘系统的线控转向机构,所述线控转向机构包括,
两根转向拉杆,水平设置,其靠近所述车轮的一端与所述转向节铰接,所述车轮所在平面垂直于所述转向拉杆时两根所述转向拉杆相对于所述车轮的竖直径向对称,所述车轮的轮辋内设置有轮毂电机;
转向动力单元,设置于底盘车架上,与所述电动汽车的电子控制单元电连接,所述转向动力单元具有速比相同且动力输出方向相反的两级动力输出端;
两组传动单元,两组所述传动单元的动力输入端分别与所述转向动力单元的两级动力输出端连接,两组所述传动单元的动力输出端分别与两根所述转向拉杆远离所述车轮的一端连接,以驱动所述转向拉杆水平往复运动,进而带动所述车轮摆动。
上述线控转向机构中,所述传动单元包括滚珠丝杆和通过螺纹套装于所述滚珠丝杆上的滑块,所述滚珠丝杆通过支座安装于所述底盘车架上,所述滚珠丝杆远离所述车轮的一端与所述转向动力单元的动力输出端连接,所述滑块与所述转向拉杆远离所述车轮的一端铰接,所述滚珠丝杆的旋转运动带动所述滑块沿所述滚珠丝杆的长度方向往复滑动,进而带动所述转向拉杆水平往复运动。
本发明所述的技术方案相比现有技术具有以下优点:
(1)本发明提供的电动汽车四轮独立转向底盘系统及其线控转向机构,包括线控转向机构和悬架车轮总成,其中线控转向机构包括两根转向拉杆、转向动力单元和两组传动单元,两组传动单元的动力输出端分别与两根转向拉杆远离车轮的一端连接,以驱动转向拉杆水平往复运动,进而带动车轮摆动。上述底盘系统结构简单、安全可靠,能够实现车轮的独立转向,车轮转向稳定性好,能够满足在狭小空间内的机动性。
(2)本发明提供的电动汽车四轮独立转向底盘系统及其线控转向机构,采用虚转向主销,使悬架车轮总成结构紧凑、体积缩小,转向驱动力不直接沿着主销传递,不会增加悬架系统的惯性质量,不会影响车辆行驶的舒适性。
(3)本发明提供的电动汽车四轮独立转向底盘系统及其线控转向机构,通过采用双向输出减速器,可消除传动齿轮的转向回差,提高转向控制精度及安全可靠性。
(4)本发明提供的电动汽车四轮独立转向底盘系统及其线控转向机构,其中传动单元包括滚珠丝杆和通过螺纹套装于滚珠丝杆上的滑块,滚珠丝杆通过支座安装于底盘车架上,滚珠丝杆的旋转运动带动滑块沿滚珠丝杆的长度方向往复滑动,进而带动转向拉杆水平往复运动。上述传动单元结构简单、设计合理、易于实现。
(5)本发明提供的电动汽车四轮独立转向底盘系统及其线控转向机构,在支座上设置有导轨,滑块在滚珠丝杆的带动下沿导轨往复滑动,导轨的长度方向与滚珠丝杆的长度方向平行,使滑块的往复运动更加稳定可靠,确保车轮转向的安全平稳。
(6)本发明提供的电动汽车四轮独立转向底盘系统及其线控转向机构,其中转向动力单元包括转向电机和连接转向电机输出轴的减速器,减速器具有速比相同且旋转方向相反的两级动力输出端,使两个滚珠丝杆转动方向相反,车轮在两根转向拉杆一个推一个拉的作用下摆动转向,上述设计通过采用双向输出减速器,可消除转向回差,提高转向控制精度,能够使得车轮转向更加平稳安全,增加车辆行驶的安全性和舒适性。
(7)本发明提供的电动汽车四轮独立转向底盘系统及其线控转向机构,转向电机据电子控制单元的控制信号提供相应的扭矩,使车轮的转向控制更加精确可靠,提高驾驶安全性能。
(8)本发明提供的电动汽车四轮独立转向底盘系统及其线控转向机构,其中车轮的轮辋内设置有轮毂电机,可实现车辆的分散驱动,可独立转动每个车轮,实现原地转向及蟹行等功能。
附图说明
为了使本发明的内容更容易被清楚的理解,下面根据本发明的具体实施例并结合附图,对本发明作进一步详细的说明,其中
图1是本发明电动汽车四轮独立转向底盘系统的立体示意图;
图2是本发明电动汽车四轮独立转向底盘系统的局部放大立体图;
图3图2的俯视图。
图中附图标记表示为:1-转向电机,2-减速器,3-滑块,4-滚珠丝杆,5-支座,6-下横臂,7-转向拉杆,8-第一球铰,9-车轮,10-轮毂电机,11-转向节,12-上横臂,13-减振器,14-导轨,15-第二球铰,16-联轴器。
具体实施方式
下文中将参考附图并结合实施例来详细说明本发明。需要说明的是,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互组合。
如图1所示,是本发明电动汽车四轮独立转向底盘系统及其线控转向机构的优选实施例,所述电动汽车四轮独立转向底盘系统包括线控转向机构和悬架车轮总成。
如图2和3所示,在本实施例中所述悬架车轮总成采用双横臂独立悬架,包括上横臂12、下横臂6、减振器13以及转向节11,所述上横臂12和所述下横臂6与车体安装固定,所述减振器13安装在所述下横臂6上,所述转向节11安装于车轮9的内侧。
所述线控转向机构包括转向动力单元、两组传动单元和两根转向拉杆7。
两根所述转向拉杆7均水平设置,所述转向拉杆7靠近所述车轮9的一端与所述转向节11铰接,所述车轮9所在平面垂直于所述转向拉杆7时两根所述转向拉杆7相对于所述车轮9的竖直径向对称,所述车轮9的轮辋内设置有轮毂电机10。具体地,所述转向拉杆7靠近所述车轮9的一端通过第一球铰8与所述转向节11铰接,所述转向拉杆7远离所述车轮9的一端通过第二球铰15与所述滑块3铰接。
两组所述传动单元的动力输入端分别与所述转向动力单元的两级动力输出端连接,两组所述传动单元的动力输出端分别与两根所述转向拉杆7远离所述车轮9的一端连接,以驱动所述转向拉杆7水平往复运动,进而带动所述车轮9摆动。在本实施例中,所述传动单元包括滚珠丝杆4和通过螺纹套装于所述滚珠丝杆4上的滑块3,所述滚珠丝杆4通过支座5安装于所述底盘车架上,所述滚珠丝杆4远离所述车轮9的一端与所述转向动力单元的动力输出端连接,所述滑块3与所述转向拉杆7远离所述车轮9的一端铰接,所述滚珠丝杆4的旋转运动带动所述滑块3沿所述滚珠丝杆4的长度方向往复滑动,进而带动所述转向拉杆7水平往复运动。所述支座5上设置有导轨14,所述滚珠丝杆4的旋转运动带动所述滑块3沿所述导轨14往复滑动,所述导轨14的长度方向与所述滚珠丝杆4的长度方向平行。
所述转向动力单元设置于底盘车架上,与所述电动汽车的电子控制单元电(即ECU,ElectronicControlUnit,又称“行车电脑”、“车载电脑”等)连接,所述转向动力单元具有速比相同且动力输出方向相反的两级动力输出端。
在本实施例中,所述转向动力单元的具体结构为:所述转向动力单元包括转向电机1和连接所述转向电机1输出轴的减速器2;所述转向电机1根据所述电子控制单元的控制信号提供相应的扭矩;所述减速器2具有速比相同且旋转方向相反的两级动力输出端,所述减速器2的两级动力输出端将扭矩分别输出给两个所述滚珠丝杆4,所述减速器2与所述滚珠丝杆4之间通过联轴器16连接。本发明通过采用双向输出减速器,可消除转向回差,提高转向控制精度及安全可靠性。
当驾驶者需要车辆转弯时,驾驶者转动方向盘,与所述方向盘连接的角度传感器检测所述方向盘转动的角度并将该角度信息传送给所述电子控制单元,所述电子控制单元计算出所述车轮9需要转向的相应角度,并将指令发送给所述转向电机1,所述转向电机1的动力传递给所述滚珠丝杆4,两个所述滑块3分别沿着两条所述导轨14做方向相反的移动,推动通过所述第二球铰15相连接的所述转向拉杆7,驱动两根所述转向拉杆7朝相反方向做水平移动,进而带动所述车轮9摆动转向。
显然,上述实施例仅仅是为清楚地说明所作的举例,而并非对实施方式的限定。对于所属领域的普通技术人员来说,在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。而由此所引伸出的显而易见的变化或变动仍处于本发明创造的保护范围之中。

Claims (9)

1.一种电动汽车四轮独立转向底盘系统,其特征在于:包括线控转向机构和悬架车轮总成;所述悬架车轮总成包括安装于车轮(9)内侧的转向节(11);所述线控转向机构包括,
两根转向拉杆(7),水平设置,其靠近所述车轮(9)的一端与所述转向节(11)铰接,所述车轮(9)所在平面垂直于所述转向拉杆(7)时两根所述转向拉杆(7)相对于所述车轮(9)的竖直径向对称,所述车轮(9)的轮辋内设置有轮毂电机(10);
转向动力单元,设置于底盘车架上,与所述电动汽车的电子控制单元电连接,所述转向动力单元具有速比相同且动力输出方向相反的两级动力输出端;
两组传动单元,两组所述传动单元的动力输入端分别与所述转向动力单元的两级动力输出端连接,两组所述传动单元的动力输出端分别与两根所述转向拉杆(7)远离所述车轮(9)的一端连接,以驱动所述转向拉杆(7)水平往复运动,进而带动所述车轮(9)摆动;
所述转向动力单元包括转向电机(1)和连接所述转向电机(1)输出轴的减速器(2),所述减速器(2)具有速比相同且旋转方向相反的两级动力输出端,所述减速器(2)的两级动力输出端将扭矩分别输出给两组所述传动单元的动力输入端。
2.根据权利要求1所述的电动汽车四轮独立转向底盘系统,其特征在于:所述传动单元包括滚珠丝杆(4)和通过螺纹套装于所述滚珠丝杆(4)上的滑块(3),所述滚珠丝杆(4)通过支座(5)安装于所述底盘车架上,所述滚珠丝杆(4)远离所述车轮(9)的一端与所述转向动力单元的动力输出端连接,所述滑块(3)与所述转向拉杆(7)远离所述车轮(9)的一端铰接,所述滚珠丝杆(4)的旋转运动带动所述滑块(3)沿所述滚珠丝杆(4)的长度方向往复滑动,进而带动所述转向拉杆(7)水平往复运动。
3.根据权利要求2所述的电动汽车四轮独立转向底盘系统,其特征在于:所述支座(5)上设置有导轨(14),所述滚珠丝杆(4)的旋转运动带动所述滑块(3)沿所述导轨(14)往复滑动,所述导轨(14)的长度方向与所述滚珠丝杆(4)的长度方向平行。
4.根据权利要求2所述的电动汽车四轮独立转向底盘系统,其特征在于:所述减速器(2)的两级动力输出端将扭矩分别输出给两个所述滚珠丝杆(4),所述减速器(2)与所述滚珠丝杆(4)之间通过联轴器(16)连接。
5.根据权利要求1所述的电动汽车四轮独立转向底盘系统,其特征在于:所述转向电机(1)根据所述电子控制单元的控制信号提供相应的扭矩。
6.根据权利要求2所述的电动汽车四轮独立转向底盘系统,其特征在于:所述转向拉杆(7)靠近所述车轮(9)的一端通过第一球铰(8)与所述转向节(11)铰接,所述转向拉杆(7)远离所述车轮(9)的一端通过第二球铰(15)与所述滑块(3)铰接。
7.根据权利要求1所述的电动汽车四轮独立转向底盘系统,其特征在于:所述悬架车轮总成采用双横臂独立悬架,还包括上横臂(12)、下横臂(6)及减振器(13),所述上横臂(12)和所述下横臂(6)与车体安装固定,所述减振器(13)安装在所述下横臂(6)上。
8.一种上述权利要求1-7任一所述电动汽车四轮独立转向底盘系统的线控转向机构,其特征在于:所述线控转向机构包括,
两根转向拉杆(7),水平设置,其靠近所述车轮(9)的一端与所述转向节(11)铰接,所述车轮(9)所在平面垂直于所述转向拉杆(7)时两根所述转向拉杆(7)相对于所述车轮(9)的竖直径向对称,所述车轮(9)的轮辋内设置有轮毂电机(10);
转向动力单元,设置于底盘车架上,与所述电动汽车的电子控制单元电连接,所述转向动力单元具有速比相同且动力输出方向相反的两级动力输出端;
两组传动单元,两组所述传动单元的动力输入端分别与所述转向动力单元的两级动力输出端连接,两组所述传动单元的动力输出端分别与两根所述转向拉杆(7)远离所述车轮(9)的一端连接,以驱动所述转向拉杆(7)水平往复运动,进而带动所述车轮(9)摆动;
所述转向动力单元包括转向电机(1)和连接所述转向电机(1)输出轴的减速器(2),所述减速器(2)具有速比相同且旋转方向相反的两级动力输出端,所述减速器(2)的两级动力输出端将扭矩分别输出给两组所述传动单元的动力输入端。
9.根据权利要求8所述的线控转向机构,其特征在于:所述传动单元包括滚珠丝杆(4)和通过螺纹套装于所述滚珠丝杆(4)上的滑块(3),所述滚珠丝杆(4)通过支座(5)安装于所述底盘车架上,所述滚珠丝杆(4)远离所述车轮(9)的一端与所述转向动力单元的动力输出端连接,所述滑块(3)与所述转向拉杆(7)远离所述车轮(9)的一端铰接,所述滚珠丝杆(4)的旋转运动带动所述滑块(3)沿所述滚珠丝杆(4)的长度方向往复滑动,进而带动所述转向拉杆(7)水平往复运动。
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Application publication date: 20140702

Assignee: Dongguan Zhongke Paichuang Intelligent Technology Co.,Ltd.

Assignor: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY CHINESE ACADEMY OF SCIENCES

Contract record no.: X2023980039819

Denomination of invention: A four wheel independent steering chassis system and its wire controlled steering mechanism for electric vehicles

Granted publication date: 20160608

License type: Common License

Record date: 20230816

EE01 Entry into force of recordation of patent licensing contract
EE01 Entry into force of recordation of patent licensing contract
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Application publication date: 20140702

Assignee: Shenzhen city wall Creative Technology Ltd.

Assignor: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY CHINESE ACADEMY OF SCIENCES

Contract record no.: X2023980040491

Denomination of invention: A four wheel independent steering chassis system and its wire controlled steering mechanism for electric vehicles

Granted publication date: 20160608

License type: Common License

Record date: 20230824

Application publication date: 20140702

Assignee: Shenzhen Mingji Agricultural Development Co.,Ltd.

Assignor: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY CHINESE ACADEMY OF SCIENCES

Contract record no.: X2023980040490

Denomination of invention: A four wheel independent steering chassis system and its wire controlled steering mechanism for electric vehicles

Granted publication date: 20160608

License type: Common License

Record date: 20230824

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Application publication date: 20140702

Assignee: Shenzhen Zhijun Industrial Investment Co.,Ltd.

Assignor: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY CHINESE ACADEMY OF SCIENCES

Contract record no.: X2023980044078

Denomination of invention: A four wheel independent steering chassis system and its wire controlled steering mechanism for electric vehicles

Granted publication date: 20160608

License type: Common License

Record date: 20231024

Application publication date: 20140702

Assignee: Jiajingjie Environmental Technology Co.,Ltd.

Assignor: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY CHINESE ACADEMY OF SCIENCES

Contract record no.: X2023980044068

Denomination of invention: A four wheel independent steering chassis system and its wire controlled steering mechanism for electric vehicles

Granted publication date: 20160608

License type: Common License

Record date: 20231024

Application publication date: 20140702

Assignee: SHENZHEN ZHONGZHI INVESTMENT CO.,LTD.

Assignor: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY CHINESE ACADEMY OF SCIENCES

Contract record no.: X2023980044067

Denomination of invention: A four wheel independent steering chassis system and its wire controlled steering mechanism for electric vehicles

Granted publication date: 20160608

License type: Common License

Record date: 20231024

Application publication date: 20140702

Assignee: Shenzhen Wufeng Lihong Trading Co.,Ltd.

Assignor: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY CHINESE ACADEMY OF SCIENCES

Contract record no.: X2023980044081

Denomination of invention: A four wheel independent steering chassis system and its wire controlled steering mechanism for electric vehicles

Granted publication date: 20160608

License type: Common License

Record date: 20231024

Application publication date: 20140702

Assignee: Shenzhen Ruofei Culture Communication Co.,Ltd.

Assignor: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY CHINESE ACADEMY OF SCIENCES

Contract record no.: X2023980044080

Denomination of invention: A four wheel independent steering chassis system and its wire controlled steering mechanism for electric vehicles

Granted publication date: 20160608

License type: Common License

Record date: 20231024

Application publication date: 20140702

Assignee: Shenzhen shengxin'an information consulting enterprise

Assignor: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY CHINESE ACADEMY OF SCIENCES

Contract record no.: X2023980044079

Denomination of invention: A four wheel independent steering chassis system and its wire controlled steering mechanism for electric vehicles

Granted publication date: 20160608

License type: Common License

Record date: 20231024

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EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20140702

Assignee: Shenzhen Mengchuang Culture Development Co.,Ltd.

Assignor: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY CHINESE ACADEMY OF SCIENCES

Contract record no.: X2023980049247

Denomination of invention: A four-wheel independent steering chassis system and its wire controlled steering mechanism for electric vehicles

Granted publication date: 20160608

License type: Common License

Record date: 20231130

Application publication date: 20140702

Assignee: Shenzhen Jinshiwan Technology Co.,Ltd.

Assignor: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY CHINESE ACADEMY OF SCIENCES

Contract record no.: X2023980049245

Denomination of invention: A four-wheel independent steering chassis system and its wire controlled steering mechanism for electric vehicles

Granted publication date: 20160608

License type: Common License

Record date: 20231130

Application publication date: 20140702

Assignee: Chuangke Zhinong (Shenzhen) Industrial Development Co.,Ltd.

Assignor: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY CHINESE ACADEMY OF SCIENCES

Contract record no.: X2023980049240

Denomination of invention: A four-wheel independent steering chassis system and its wire controlled steering mechanism for electric vehicles

Granted publication date: 20160608

License type: Common License

Record date: 20231130

Application publication date: 20140702

Assignee: Chuangke Port (Shenzhen) Science and Technology Innovation Center

Assignor: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY CHINESE ACADEMY OF SCIENCES

Contract record no.: X2023980049236

Denomination of invention: A four-wheel independent steering chassis system and its wire controlled steering mechanism for electric vehicles

Granted publication date: 20160608

License type: Common License

Record date: 20231130

EE01 Entry into force of recordation of patent licensing contract
EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20140702

Assignee: Jingyun Grapefruit Technology (Shenzhen) Co.,Ltd.

Assignor: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY CHINESE ACADEMY OF SCIENCES

Contract record no.: X2023980051450

Denomination of invention: A four-wheel independent steering chassis system and its wire controlled steering mechanism for electric vehicles

Granted publication date: 20160608

License type: Common License

Record date: 20231211

Application publication date: 20140702

Assignee: Shenzhen Dongfang Huilian Technology Co.,Ltd.

Assignor: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY CHINESE ACADEMY OF SCIENCES

Contract record no.: X2023980051448

Denomination of invention: A four-wheel independent steering chassis system and its wire controlled steering mechanism for electric vehicles

Granted publication date: 20160608

License type: Common License

Record date: 20231211

Application publication date: 20140702

Assignee: Shenzhen Xunming Trading Co.,Ltd.

Assignor: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY CHINESE ACADEMY OF SCIENCES

Contract record no.: X2023980051409

Denomination of invention: A four-wheel independent steering chassis system and its wire controlled steering mechanism for electric vehicles

Granted publication date: 20160608

License type: Common License

Record date: 20231211

Application publication date: 20140702

Assignee: Shenzhen Nanshan District Qiangfenfu Hotel

Assignor: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY CHINESE ACADEMY OF SCIENCES

Contract record no.: X2023980051406

Denomination of invention: A four-wheel independent steering chassis system and its wire controlled steering mechanism for electric vehicles

Granted publication date: 20160608

License type: Common License

Record date: 20231211

Application publication date: 20140702

Assignee: Shenzhen Minghua Trading Co.,Ltd.

Assignor: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY CHINESE ACADEMY OF SCIENCES

Contract record no.: X2023980051405

Denomination of invention: A four-wheel independent steering chassis system and its wire controlled steering mechanism for electric vehicles

Granted publication date: 20160608

License type: Common License

Record date: 20231211

Application publication date: 20140702

Assignee: Shenzhen Yingqi Consulting Co.,Ltd.

Assignor: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY CHINESE ACADEMY OF SCIENCES

Contract record no.: X2023980051402

Denomination of invention: A four-wheel independent steering chassis system and its wire controlled steering mechanism for electric vehicles

Granted publication date: 20160608

License type: Common License

Record date: 20231211

Application publication date: 20140702

Assignee: Shenzhen Haocai Digital Technology Co.,Ltd.

Assignor: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY CHINESE ACADEMY OF SCIENCES

Contract record no.: X2023980051250

Denomination of invention: A four-wheel independent steering chassis system and its wire controlled steering mechanism for electric vehicles

Granted publication date: 20160608

License type: Common License

Record date: 20231212

EE01 Entry into force of recordation of patent licensing contract
EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20140702

Assignee: Jianyangkai Advertising Department, Nanshan District, Shenzhen

Assignor: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY CHINESE ACADEMY OF SCIENCES

Contract record no.: X2023980051397

Denomination of invention: A four-wheel independent steering chassis system and its wire controlled steering mechanism for electric vehicles

Granted publication date: 20160608

License type: Common License

Record date: 20231212

Application publication date: 20140702

Assignee: Shenzhen Weilan Sports Culture Development Co.,Ltd.

Assignor: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY CHINESE ACADEMY OF SCIENCES

Contract record no.: X2023980051394

Denomination of invention: A four-wheel independent steering chassis system and its wire controlled steering mechanism for electric vehicles

Granted publication date: 20160608

License type: Common License

Record date: 20231212

Application publication date: 20140702

Assignee: Shenzhen Weigao Investment Development Co.,Ltd.

Assignor: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY CHINESE ACADEMY OF SCIENCES

Contract record no.: X2023980051257

Denomination of invention: A four-wheel independent steering chassis system and its wire controlled steering mechanism for electric vehicles

Granted publication date: 20160608

License type: Common License

Record date: 20231212

EE01 Entry into force of recordation of patent licensing contract