Dual motor electric tractor pto control system
A control system, tractor technology, applied in the direction of control device, auxiliary drive device, vehicle components, etc., can solve the problems of not using electric drive, complex mechanical structure, large motor power demand, etc., to reduce the number of keys and enhance anti-interference. effect of ability
Active Publication Date: 2020-07-31
HENAN UNIV OF SCI & TECH
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Problems solved by technology
[0002] Traditional fuel tractor PTO is powered by a diesel engine, and its output speed cannot be adjusted arbitrarily, it can only be fixed at two to three rated speeds, and the matching agricultural implements need to be equipped with a suitable reduction mechanism to be able to use normally
In an electric tractor, the PTO output can be completed by a separate motor, and its speed regulation becomes possible. If it is arranged like a traditional tractor, that is, the driving motor is connected to the PTO through a mechanical transmission, the motor power demand is large, and the overall system mechanical structure is more complicated. , did not take advantage of the electric drive
Method used
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Embodiment
[0024] PTO control system for dual-motor electric tractors, including input devices, non-driven wheel speed sensors (used to detect the rotation speed of non-driven wheels), master controller, D / A conversion circuit and PTO motor controller;
[0025] Input equipment: In the working condition of the tractor, there are often situations where the PTO motor is required to provide rated speed output and the sowing interval is controlled (the speed of the PTO motor is required to perform coordinated follow-up control according to the driving speed of the tractor). Therefore, in this embodiment The control information input to the main controller through the input device includes control PTO motor follow-up and rated rotation; among them, the input device adopts digital key input; because the number of keys required is large, the matrix must be used to occupy the controller port as little as possible However, if you connect in a one-to-one manner, you need more port resources; this solut...
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The invention relates to a dual-motor electric tractor PTO control system. The dual-motor electric tractor PTO control system mainly comprises an input device, a non-driving wheel rotating speed sensor, a total controller, a D / A switching circuit and a PTO motor controller. The control system has two main functions of being used for achieving the aims that the rotating speed of the dual-motor electric tractor PTO synchronously follows the driving speed of a tractor, and a reasonable and reliable accurate interval control method and control system is provided for sowing operation, pesticide spreading operation and the like of the electric tractor and being used for achieving the aim that the dual-motor electric tractor PTO outputs and matches different agricultural implements at any certainrotating speed in the adjustable range.
Description
Technical field [0001] The invention relates to the field of tractor control, in particular to a dual-motor electric tractor PTO control system. Background technique [0002] The traditional fuel tractor PTO is powered by a diesel engine, and its output speed cannot be adjusted arbitrarily. It can only be fixed at two to three rated speeds. The matched agricultural tools need to be equipped with a suitable deceleration mechanism to be used normally. In an electric tractor, the PTO output can be completed by a separate motor, and its speed control becomes possible. If it is arranged like a traditional tractor, that is, the driving motor is connected to the PTO through a mechanical transmission device, the motor power demand is large, and the overall system mechanical structure is more complicated. , Did not take advantage of the electric drive. Therefore, the electric tractor is suitable to use a separate PTO motor, and it is very meaningful to develop the corresponding control s...
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IPC IPC(8): B60K25/00
CPCB60K25/00B60K2025/005
Inventor 徐立友王通周志立刘孟楠赵学平闫祥海倪倩
Owner HENAN UNIV OF SCI & TECH