基于RENESAS RL78/F14系列单片机的高性能汽车电动尾箱控制器解决方案
概述
汽车电动尾箱要求具有智能控制功能,同时反映速度快,可靠性高,同时具有较低成本和较高的控制精度。本方案汽车尾箱控制器采用高性价比单片机,采用CAN/LIN 总线接收BCM 的钥匙控制信号,同时接收红外感应信号,运用嵌入式智能控制技术实现智能操作,使汽车尾箱控制更加简便,用户体验更加方便。
优势
· RENESAS RL78/F14 系列单片机:支持功能安全,可靠性高,使电动尾箱控制系统更加稳定;最高主频32MHz,运算速度快,方便客户实现智能控制和复杂算法;支持CAN/LIN 通信,集成AD 转换器和PWM 输出,简化外围电路,设计简单,降低系统成本。
【RL78/F14】
The successors to the 78K0R and R8C, with the industry's lowest level of consumption current. Due to high reliability and built-in motor control functions, these automotive general-purpose low-end microcontrollers can be used not only for automotive applications but also industrial applications.
RL78/F14 microcontrollers are positioned as the upper level product to the RL78/F13, are available in a 30 to 100-pin, 48 to 256 KB flash memory lineup, and realize the industry's lowest level of consumption current. They have a built-in CAN module and LIN module for automotive interfaces, and also support BLDC motor control using the RL78/F13's functional safety features, timer RD, comparator, and D/A converter. Since a highly reliable system can be built, these microcontrollers can be used for industrial applications and of course automotive applications.
Key Features:
Remark : Only to show different point
ITEM | RL78/F14 | |||||
---|---|---|---|---|---|---|
Part Name | R5F10PA | R5F10PB | R5F10PG | R5F10PL | ||
Pins | 30 | 32 | 48 | 64 | ||
I/O Port | In / Out | CMOS | 23 channels | 25 channels | 38 channels | 52 channels |
Output | CMOS | - | 1 channel | |||
Input | Clock pin | 2 channels | 4 channels | |||
Input | 1 channel | |||||
Power supply pins | For internal | VDD, VSS, REGC | ||||
For I/O port | - | EVDD0, EVSS0 | ||||
For analog | VDD, VSS (AVREFP, AVREFM) | |||||
External Interrupt | Flash over 96 KB | (No applicable products) | 14 channels | 15 channels | ||
Flash up to 96 KB | 9 channels | 13 channels | 14 channels | |||
Key Return | 8 channels | 6 channels | 8 channels | |||
Data Transfer Control (DTC) | 37 sources | 38 / 44 sources | ||||
Timer Array Unit | Flash over 96 KB | (No applicable products) | 16-bit x (8 channels x 2) | |||
Flash up to 96 KB | 16-bit x (8 + 4) channels | 16-bit x (8 + 4) channels | ||||
Serial Interface | CSI / SimpleI2C / UART | 3 channels / 3 channels / 2 channels | 4 channels / 4 channels / 2 channels | |||
Multi-master I2C | - | 1 channel | ||||
LIN / UART | 1 channel | 2 channels for Flash over 96 KB product and 1 channel for Flash up to 96 KB product | ||||
CAN | 1 channel | |||||
10-bit A/D Converter | External | 12 channels (Note 1) | 10 channels (Note 1) | 15 / 18 channels (Note 1, 2) | 19 / 20 channels (Note 1, 2) | |
Internal | 2 channels | |||||
Event Link Controller (ELC) | Link source : 20 channels Link destination : 7 channels | Link source : 26 channels Link destination : 7 / 9 channels (Note 2) | ||||
PCL / Buzzer | - | 1 channel | ||||
Sub oscillator | - | 32.768 kHz | ||||
Operating temperature | -40 to +105 °C (grade L) / -40 to +125 °C (grade K) / -40 to +150 °C (grade Y) |
(Note 1) These are the are maximum achievable A/D converter channels.
For the specified accuracy for each channel,please refer to the data sheet.
(Note 2) a / b channels (a : Flash up to 96 KB products, b : Flash 128 to 256 KB products)
Pin Count / Memory Size Lineup:
Program Flash
SRAM
256KB 20KB | ● | ● | ● | ● | ● | ||
---|---|---|---|---|---|---|---|
192KB 16KB | ● | ● | ● | ● | ● | ||
128KB 10KB | ● | ● | ● | ● | ● | ||
96KB 8KB | ● | ● | ● | ● | ● | ||
64KB 6KB | ● | ● | ● | ● | ● | ● | ● |
48KB 4KB | ● | ● | ● | ● | |||
Pins Package | 30 LSSOP | 32 HVQFN | 48 LFQFP | 48 HVQFN | 64 LFQFP | 80 LFQFP | 100 LFQFP |
Block Diagram:
【汽车电动尾门】
汽车电动尾门,其实也就是电动后备箱。指后备箱采用电动或者是遥控方式开开启或关闭。若要开启后备箱,只需按一下车里的按钮或者是遥控钥匙,后备箱就会自己打开,如果要关闭后备箱,就按一下后备箱里的关闭按钮或者车内的关闭按钮后,或者是遥控钥匙备箱就会自己关闭。
电动尾门基本结构是两根芯轴驱动杆构成。驱动杆通过主轴驱动器由一个内管和一个外管组成其中内管中的电机和齿轮驱动着一个螺纹主轴该螺纹主轴在固定于外管内侧的螺纹螺母上运动。电动支柱使用位于支柱内部电机内的电动主轴来开合行李箱盖弹簧也对盖开启操作起到辅助作用。
1、车辆尾门开关键开闭。通过按动车辆仪表台或尾门上的尾门开关键实现尾门开闭操作。见下图,1为尾门开关键;
2、为仪表台尾门开关键
3、感应式开闭。手或任意物体放置于尾门相应的感应区域,即可自动开启尾门,适用于手上物件太多时不便于手动或用电子车钥匙的情况,2013年福特翼虎在其高端车型上即采用此技术。
1、手自一体开启
驾乘者通过按动车辆尾门开关键、遥控车钥匙或在尾门相应区域使用手或任意物体感应操作即可实现开闭尾门,避免因手持过多物件不便开门时,轻松快捷地实现物件存入车辆。
2、智能防夹功能
在关闭尾门时通过传感器检测障碍物,电动尾门开启或关闭过程中碰到障碍物,门会向反方向运动,有效防止夹伤儿童或损坏车辆。
3、紧急闭锁功能
当遇到突发情况需紧急关闭尾门,电动尾门开启或关闭过程中,可通过遥控钥匙或车辆尾门开关键随时让尾门停止运转,操控随心所欲。
4、高度记忆功能
尾门打开高度可调节,车主可根据使用习惯,通过手控按钮设定尾门最终打开高度,只需按尾门开关键,将其打开到预定高度,再轻按开关键5秒以上,待听到“嘀”一声,即可完成尾门打开高度的设置。在下次开启尾门时,高度将自动升至设定的高度。
责任编辑:Davia
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