INDEPENDENT WHEEL DRIVE R/C CAR

https://hackaday.com/2014/07/12/independent-wheel-drive-rc-car/ The picture above looks like a standard four-wheel drive (4WD) touring car. As one looks closer, a few strange things start to pop out. Where’s the motor? 4 electronic speed controls? What’s going on here? [HammerFET] has created this independent drive R/C car (YouTube link) as a research platform for his control system. The car started off life as a standard Schumacher Mi51/10th scale Touring Car. [HammerFET] removed the entire drive system. The motor, differentials, belt drive, and ESC all made for quite a pile of discarded hardware.

其實，可以用無人機果個方法嚟做，四個軸四個電變，仲要細隻好多。
不過有冇佢呢個做法咁快呢，就唔知喇。

另一個問題就係轉灣時尾果下差速效果，否則將會甩到飛起。

AMAT 發表於 2019-10-12 21:48
其實，可以用無人機果個方法嚟做，四個軸四個電變，仲要細隻好多。
不過有冇佢呢個做法咁快呢，就唔知喇。
...

如果裝埋隻飛控落去又點呢？

fat_fat_cat 發表於 2019-10-14 19:30
如果裝埋隻飛控落去又點呢？

其實裝得無人機換嘢都應該要落埋飛控......

根本就係一個無人機玩法。

不過無人機轉灣係冇轉向，車係有。
轉果一下如果冇飛控去調整尾果下差速效果，就會甩到飛起。

AMAT 發表於 2019-10-14 23:05
其實裝得無人機換嘢都應該要落埋飛控......

根本就係一個無人機玩法。

無人機的轉彎正是用四軸間的轉速差來轉彎
所以 只要飛控PID調整的好
過彎理論上幾乎等同軌道車  不會甩的
想知道跑起來像啥樣  可參考DJI的ROBOMASTER S1  https://www.youtube.com/watch?v=8lquX-imy6o

差速器的存在 僅是協調左右輪速差
大不了加個扭限   增加出彎加速性
四輪獨立電機則已經超出該範疇   
他可以做到彎道內側輪獨立煞停，甚至反轉
四輪動力分配可以從1:99到99:1 而且還可以動態修正   
只要修正速度夠快，四獨立motor車根本連轉向SERVO都不用
直接用刻意創造的輪速差來轉彎即可(但輪胎會很耗)
這是單動力源的遙控車遠遠做不到的