How to solve the problem of non-synchronous clock frequency on hydraulic motors?

Question

MySQL

There is a platform that moves on tracks. It is driven by two hydraulic motors. How to programmatically solve the problem of synchronization of motors so that it goes straight, and does not skip on one of the motors and does not roll to the side?
At the moment, the control is through ROS, the Iscra board and the motor control shield. A PWM signal is sent to the motors that drive, but rotation is out of sync.

Answer 1

Escape not with quotes, but with \ and not the entire field, but the specific character that it loses.
Yes, and in the replay too `description_ru-RU`

Answer 2

I think you have description_ru-RUspaces: description_ru - RU.

Answer 3

Programmatically, this is not solved, a sensor is needed for each caterpillar, which would show the speed of the caterpillar, and according to the readings of the sensors, already adjust the speed.

Answer 4

If there is a hydraulic transmission, then only feedback sensors on the tracks themselves, the same optocouplers, hall sensors, etc.
Tk. there are a lot of places for out of sync, both electronic and physical.
If one caterpillar hits an obstacle, you will never know that it has slowed down, because. the signal went off but the load on the engine was more than calculated and he could not turn the caterpillar