解析丨麦格纳6DCT260产品

一、6DCT260 – Overview 概述

  • Downsize develop based on 7DCT300 基于7DCT300的小型化开发

  • Input torque 260 Nm 输入扭矩260Nm

  • Dry weight 64 kg (w/o DMF) 净重64千克(不含双质量飞轮)

  • Wet nested dual clutch 湿式嵌套双离合器

  • 6-speed R with a max gear ratio span of 6.46个前进档和1个倒档,最大速比范围6.4

  • Mechanical or Electric park lock 可选机械或电子驻车机构

  • Electro mechanical gear actuation 电子机械式换档执行系统

  • Electro hydraulic clutch actuation 电子液压离合器执行系统

  • Electrical on-demand cooling 适时电子冷却系统

  • Start/stop functionality and extended sailing functionaltiy (no additional HW needed)支持启停功能及扩展的滑行功能(不需要额外硬件支持)

二、6DCT260组成部件

电子控制部件

  • Stand-alone TCU mounted to transmission housingTCU安装于变速器壳体上

  • External wiring harness mounted on transmission线束安装在变速器外部

  • 5 power stages for BLDC motors (shift/clutch/cooling)5个功率驱动的无刷直流电机(换档/离合器执行/离合器冷却)

  • 2 pressure sensors2个压力传感器

  • 1 oil temperature sensor1 个油温传感器

  • 2 speed sensor (1 with direction)2个速度传感器(其中一个包含方向)

  • Transmission range sensor(no need for PBW)变速箱档位位置传感器(电子驻车不需要)

离合器硬件

  • Wet nested clutch 湿式嵌套式离合器

  • Oil cooling 油冷压力循环

  • Oil volume 3.5L 油量3.5L

  • Low viscosity oil 低粘度润滑油

  • Low inertia 低惯量

  • Maximum engine speed 7500 rpm最大引擎转速7500rpm

  • Friction surfaces C1=6 / C2=8

  • 摩擦表面C1=6 / C2=8

  • Torque capacity 300 Nm ~10bar扭矩容量300 Nm ~10bar

  • Similar clutch gain of 34 Nm/bar for both clutches两个离合器的传递扭矩/压力比类似,即34 Nm/bar

  • Stroke point of 1,5 bar 半接合点压力约1.5 bar

  • Weight 7,0 kg(with clutch support) 重7.0千克(含离合器支撑)

齿轮组

  • Center distance中心距:183 mm

  • Max gear ratio span of 6.4最大齿轮速比范围6.4

Shortest 1st gear: 18.5最大一档速比:18.87

Longest 7th gear: 1.87最小七档速比: 2.735

  • Two dependancies 2个共用输入齿轮齿轮组

- 4th and 6th gear 4档及6档齿轮

- 3th and 5th gear 3档及5档齿轮

换挡系统

  • Odd and even gears are controlled by two shift drums respectively奇偶档位分别由两个换档鼓控制

  • Two e-motors control two shift drums respectively两个电机分别控制两个换档鼓

  • Double-cone rings for 1st and Rev gear一档和倒档为双锥

  • Single-cone rings for all other gears其它档为单锥

  • Carbon-lining for all cone rings所有同步环为碳衬

集成式电子驻车

  • The basic concept idea is a gear train driven by the gear of the shift

  • drum 2 which is then turning the park lock shaft.基本概念为由换档毂2带动一个齿轮传动,然后带动驻车锁轴。

三、主要产品特点

  • Low weight(low to 64kg for dry weight)重量低(净重低至64kg)

  • High transmit efficiency(up to 97%)较高的传递效率(综合效率可达97%)

  • Compact design, easy for package and integration结构紧凑,易于布置和集成

  • Park by wire, better to support ADAS/APA电子驻车,更方便的支持ADAS/APA

  • Active thermal management (electric on demand oil cooling)主动的热管理(适时电子油冷系统)

  • Good temperature performance due to high thermal capacity高的热容量带来的更好的温度表现

  • Robust electrical hydraulic clutch actuation system with long development experience基于长期开发经验的稳健电子液压离合器执行系统

  • Extended sailing functionaltiy (no additional HW needed)支持扩展的滑行功能(不需要额外硬件支持)

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