CN220430137U - New energy locomotive anti-slip driving system - Google Patents

Abstract

The utility model provides an anti-slip driving system of a new energy locomotive, which comprises a driving motor, a motor controller, a humidity sensor, an inclination sensor and a whole vehicle controller, wherein the motor controller is connected with the driving motor; the driving motor is arranged at a wheel of the locomotive and used for driving the wheel, the motor controller is connected with the driving motor and used for controlling the driving motor to run, the humidity sensor is arranged at the bottom of the locomotive, and the inclination sensor is arranged on a bottom plate of the locomotive and is arranged in parallel with the plane of the bottom plate; and the whole vehicle controller is connected with the inclination angle sensor, the humidity sensor and the motor controller. According to the utility model, the wheel-rail adhesion coefficient is obtained through the air humidity and the rotating speed, the maximum adhesion force of the locomotive is calculated according to the wheel-rail adhesion coefficient and the inclination angle, and the wheel slip phenomenon caused by smaller adhesion force due to overlarge driving force is effectively avoided by controlling the driving torque.

Description

New energy locomotive anti-slip driving system

Technical Field

The application relates to the field of electric driving of new energy locomotives, in particular to an anti-slip driving system of a new energy locomotive.

Background

Along with the popularization and application of new energy electricity driving technology, new energy rail locomotives are rapidly developed in application scenes such as steel plants, mines and the like. In the practical application scene, the rear end load of the locomotive is larger, and the electric locomotive has larger traction torque. When the track adhesion is insufficient, the phenomenon of skidding of the driving wheels of the locomotive power carriage is easy to occur. In the prior art, torque limitation is carried out after locomotive wheels slip, and driving force is recovered after the wheel speed is recovered to be normal. Although the method can effectively prevent the driving force from being reduced caused by slipping in practical application, the phenomenon of repeated slipping occurs when the adhesive force of the wheel track is smaller on a wet slippery road surface or an uphill working condition, so that the abrasion of the wheel track is caused, and the safety and the stability of long-term running of a locomotive are affected.

Therefore, it is necessary to provide a new energy locomotive anti-slip driving system to solve the above problems.

Disclosure of Invention

The utility model provides an anti-slip driving system of a new energy locomotive, which is used for acquiring a wheel rail adhesion coefficient through air humidity and rotating speed, calculating the maximum adhesion force of the locomotive according to the wheel rail adhesion coefficient and an inclination angle, and effectively avoiding the wheel slip phenomenon caused by smaller adhesion force due to overlarge driving force by controlling driving torque.

In order to achieve the above purpose, the present utility model provides the following technical solutions.

A new energy locomotive anti-slip driving system comprises a driving motor, a motor controller, a humidity sensor, an inclination sensor and a whole vehicle controller; the driving motor is arranged at a wheel of the locomotive and used for driving the wheel, the motor controller is connected with the driving motor and used for controlling the driving motor to run, the humidity sensor is arranged at the bottom of the locomotive, and the inclination sensor is arranged on a bottom plate of the locomotive and is arranged in parallel with the plane of the bottom plate; and the whole vehicle controller is connected with the inclination angle sensor, the humidity sensor and the motor controller.

Optionally, the whole vehicle controller is in communication with the inclination sensor, the humidity sensor and the motor controller through a CAN bus.

Optionally, the whole vehicle controller sends a speed command and a torque command to the motor controller to control the rotation speed and the driving torque of the wheels.

Optionally, the humidity sensor is configured to measure the air humidity at the bottom of the locomotive in real time and send the measured air humidity value to the whole vehicle controller.

Optionally, the inclination angle sensor is used for measuring the inclination angle of the current climbing of the locomotive in real time and sending the measured inclination angle value to the whole vehicle controller.

Optionally, the whole vehicle controller acquires an air humidity value measured by the humidity sensor and a rotating speed value fed back by the motor controller; the vehicle controller is stored with a wheel-rail adhesion coefficient comparison table, and the wheel-rail adhesion coefficient comparison table is stored with corresponding values of air humidity, rotating speed and wheel-rail adhesion coefficient; and the whole vehicle controller can query the wheel-rail adhesion coefficient comparison table according to the air humidity value and the rotating speed value to obtain the current wheel-rail adhesion coefficient.

Optionally, the motor controller is connected with the driving motor through a high-voltage cable.

Compared with the prior art, the technical scheme of the embodiment of the utility model has the beneficial effects.

For example, the humidity sensor and the inclination sensor are arranged, the wheel rail adhesion coefficient is obtained through the air humidity and the rotating speed fed back by the motor controller, the maximum adhesion force of the locomotive is calculated according to the wheel rail adhesion coefficient and the inclination angle, and the wheel slipping phenomenon caused by small adhesion force due to overlarge driving force is effectively avoided through controlling the driving torque; the realization mode is simple, the reliability is good, the practicability is high, the skid and abrasion of wheels is greatly reduced, and the safety and the stability of long-term running of the locomotive are improved.

For another example, the wheel track adhesion coefficient comparison table is stored in the whole vehicle controller, the wheel track adhesion coefficient is obtained in a table look-up mode through the air humidity and the rotating speed, the complex calculation process is reduced, and the method is convenient and quick.

For example, the whole vehicle controller is connected with the inclination angle sensor, the humidity sensor and the motor controller by adopting the CAN bus, and has simple wiring mode and reliable communication.

Drawings

FIG. 1 is a schematic diagram of an anti-slip drive system for a new energy locomotive in an embodiment of the present utility model.

In the figure:

1. a driving motor; 2. a motor controller; 3. a humidity sensor; 4. an inclination sensor; 5. a vehicle controller; 6. a CAN bus; 7. a locomotive; 71. and (3) a wheel.

Detailed Description

In order to make the objects, features and advantageous effects of the present utility model more comprehensible, embodiments accompanied with figures are described in detail below. It is to be understood that the following detailed description is merely illustrative of the utility model, and not restrictive of the utility model. Moreover, the use of the same, similar reference numbers in the figures may indicate the same, similar elements in different embodiments, and descriptions of the same, similar elements in different embodiments, as well as descriptions of prior art elements, features, effects, etc. may be omitted.

Referring to fig. 1, an embodiment of the utility model provides an anti-slip driving system for a new energy locomotive.

Specifically, the intelligent vehicle control system comprises a driving motor 1, a motor controller 2, a humidity sensor 3, an inclination sensor 4 and a vehicle controller 5; the driving motor 1 is arranged at a wheel 71 of the locomotive 7 and used for driving the wheel 71, the motor controller 2 is connected with the driving motor 1 and used for controlling the driving motor 1 to run, the humidity sensor 3 is arranged at the bottom of the locomotive 7, and the inclination sensor 4 is arranged on the bottom plate of the locomotive 7 and is arranged in parallel with the plane of the bottom plate; the whole vehicle controller 5 is connected with the inclination sensor 4, the humidity sensor 3 and the motor controller 2.

In some embodiments, the whole vehicle controller 5 is in connection communication with the tilt sensor 4, the humidity sensor 3 and the motor controller 2 through the CAN bus 6; the CAN bus 6 is simple in wiring and reliable in communication.

In some embodiments, the motor controller 2 is connected with the driving motor 1 through a high-voltage cable, so that the connection is reliable and not easy to damage.

In particular implementations, the vehicle controller 5 sends speed and torque commands to the motor controller 2 to control the rotational speed and drive torque of the wheels 71.

In a specific implementation, the humidity sensor 3 is configured to measure the air humidity at the bottom of the locomotive 7 in real time and send the measured air humidity value to the vehicle controller 5.

In a specific implementation, the tilt sensor 4 is configured to measure, in real time, a tilt angle of a current climbing of the locomotive 7 and send the measured tilt angle value to the vehicle controller 5.

In a specific implementation, the vehicle controller 5 obtains the air humidity value measured by the humidity sensor 3 and the rotation speed value fed back by the motor controller 2.

In some embodiments, the vehicle controller 5 stores a wheel-rail adhesion coefficient comparison table, and the wheel-rail adhesion coefficient comparison table stores corresponding values of air humidity, rotational speed and wheel-rail adhesion coefficient; the corresponding values of the air humidity, the rotating speed and the wheel track adhesion coefficient in the wheel track adhesion coefficient comparison table are obtained by measuring the wheel track adhesion coefficients under different air humidity and different rotating speeds through experiments.

In a specific implementation, the vehicle controller 5 may query the wheel-rail adhesion coefficient comparison table according to the air humidity value and the rotation speed value to obtain the current wheel-rail adhesion coefficient. The maximum adhesive force can be calculated by combining the wheel-rail adhesion coefficient with the inclination angle value measured by the inclination angle sensor 4 and combining the weight of the locomotive 7. The driving torque is controlled so that the traction force of the locomotive 7 is equal to or less than the maximum traction force, and the wheel 71 is prevented from slipping.

In summary, in the anti-slip driving system for a new energy locomotive provided by the embodiment of the utility model, the humidity sensor 3 and the inclination sensor 4 are arranged, the wheel-rail adhesion coefficient is obtained through the air humidity and the rotating speed fed back by the motor controller 2, the maximum adhesion force of the locomotive 7 is calculated according to the wheel-rail adhesion coefficient and the inclination angle 4, and the phenomenon of wheel 71 slipping caused by small adhesion force due to overlarge driving force is effectively avoided by controlling the driving torque; the implementation mode is simple, the reliability is good, the practicability is high, the skid and abrasion of the wheels 71 is greatly reduced, and the safety and the stability of the locomotive 7 in long-term operation are improved.

Further, a wheel track adhesion coefficient comparison table is stored in the vehicle controller 5, and the wheel track adhesion coefficient is obtained in a table look-up mode through air humidity and rotating speed, so that a complex calculation process is reduced, and convenience and rapidness are realized.

Further, the whole vehicle controller 5 of the utility model adopts a CAN bus 6 to connect the inclination sensor 4, the humidity sensor 3 and the motor controller 2, the wiring mode is simple, and the communication is reliable.

Although specific embodiments have been described above, these embodiments are not intended to limit the scope of the disclosure, even where only a single embodiment is described with respect to a particular feature. The characteristic examples provided in the present disclosure are intended to be illustrative, not limiting, unless stated differently. In practice, the features of one or more of the dependent claims may be combined with the features of the independent claims where technically possible, according to the actual needs, and from the features of the respective independent claims in any appropriate manner, not only by the specific combinations enumerated in the claims.

Claims (7)

1. The new energy locomotive anti-slip driving system is characterized by comprising a driving motor, a motor controller, a humidity sensor, an inclination angle sensor and a whole vehicle controller; the driving motor is arranged at a wheel of the locomotive and used for driving the wheel, the motor controller is connected with the driving motor and used for controlling the driving motor to run, the humidity sensor is arranged at the bottom of the locomotive, and the inclination sensor is arranged on a bottom plate of the locomotive and is arranged in parallel with the plane of the bottom plate; and the whole vehicle controller is connected with the inclination angle sensor, the humidity sensor and the motor controller.

2. The new energy locomotive anti-slip driving system according to claim 1, wherein the whole vehicle controller is in communication with the inclination sensor, the humidity sensor and the motor controller through a CAN bus.

3. The anti-slip drive system of a new energy locomotive according to claim 1, wherein the vehicle controller sends speed and torque commands to the motor controller to control the rotational speed and drive torque of the wheels.

4. The new energy locomotive anti-slip drive system of claim 1, wherein the humidity sensor is configured to measure the air humidity at the bottom of the locomotive in real time and send the measured air humidity value to the overall controller.

5. The new energy locomotive slip prevention driving system according to claim 1, wherein the tilt sensor is configured to measure a tilt angle of a current climbing of the locomotive in real time and transmit the measured tilt angle value to the whole locomotive controller.

6. The new energy locomotive anti-slip driving system according to claim 1, wherein the whole vehicle controller obtains an air humidity value measured by the humidity sensor and a rotating speed value fed back by the motor controller; the vehicle controller is stored with a wheel-rail adhesion coefficient comparison table, and the wheel-rail adhesion coefficient comparison table is stored with corresponding values of air humidity, rotating speed and wheel-rail adhesion coefficient; and the whole vehicle controller can query the wheel-rail adhesion coefficient comparison table according to the air humidity value and the rotating speed value to obtain the current wheel-rail adhesion coefficient.

7. The new energy locomotive anti-slip driving system according to claim 1, wherein the motor controller is connected with the driving motor through a high voltage cable.