TW201515862A - A motor-assisted joint system for articulated buses - Google Patents

Abstract

The present invention provides a motor-assisted joint system for improving the maneuverability and the safety of articulated buses, wherein; the motor-assisted joint system operates on an active damping mode that utilizes a flat motor embedded within the articulated joint for producing a calculated and highly-responsive damping force according to the vehicle speed and for producing a countering resistance against the vehicle inertia when an oversteering event or a wheel-skipping event takes place, thereby improving the driving quality of the articulated bus in all terrains and weathers.

Description

Motor auxiliary joint system for articulated bus

The present invention relates to a motor auxiliary joint system for an articulated bus, and more specifically, a joint provided with a flat motor, which uses a flat motor to adjust the angle of the joint and generate reverse resistance to offset the former The torsion of the frame of the car and the frame of the trailer to improve the stability of the articulated bus during operation, thereby improving the safety and ride comfort of the vehicle; the present invention is in the field of articulated buses.

The general commercial articulated buses use hydraulic shock absorbing systems to stabilize the body during cornering or high-speed driving. However, hydraulic shock absorbing systems are difficult to react in time when sudden shock or tire slip occurs, so In the case of the wheel traction system, it is difficult to control the angle of the joint, and it is difficult to avoid the sway caused by the trailer car at high speed. In this case, when the passenger faces multiple options, it is more likely to be the articulated bus. For the comfort problem, choose to take the regular bus.

The main object of the present invention is to provide a motor auxiliary joint system which can improve the stability and comfort of an articulated bus.

A secondary object of the present invention is to provide a motor auxiliary joint system that is capable of calculating and generating a highly sensitive damping force path to stabilize the trailer frame based on the vehicle speed, thereby reducing unnecessary sloshing.

Another object of the present invention is to provide a motor-assisted street system that can generate a reverse resistance to counteract vehicle inertia when an oversteer or tire slip event occurs, and quickly adjust the joint angle to a safe range. In turn, the driving performance and safety of the vehicle are improved.

In order to achieve the above object, a broader aspect of the present invention provides a motor auxiliary joint system for an articulated bus, comprising: an upper stator member and a lower stator member, both disposed on a front frame; a flat rotor member And superposing at least one bearing coaxially on the upper stator member and the lower stator member; and a cantilever member disposed on a trailer frame for pivoting to a horizontal axis connected to the extended member of the flat rotor member to withstand The up and down movement between the front frame and the trailer frame.

According to the concept of the present invention, the motor auxiliary joint system used by the articulated bus further comprises: a vehicle speed sensor; a steering wheel position sensor; and a control unit for reading the data of the steering wheel position and the vehicle speed and adjusting the target joint angle according to the data.

According to the concept of the present invention, the control unit includes an operation method for setting a low speed standard value to determine whether the rotation of the flat rotor member is permitted by a vehicle speed message.

According to the concept of the present invention, the control unit limits the rotation of the flat rotor member in accordance with the vehicle speed.

According to the concept of the present case, the control unit increases the target joint angle in the reverse mode.

In order to achieve the above object, another broad aspect of the present invention provides a motor auxiliary joint system for use in an articulated bus, comprising: a motor auxiliary joint including a stator body and a rotor; and a base member connected to The stator body and the front frame; an extension member for connecting the stator body to a trailer frame through a cantilever member to allow vertical movement; a vehicle speed sensor; a steering wheel position sensor; a control unit, according to the detection The speed information and steering wheel position information to adjust the target joint angle.

According to the concept of the present invention, the control unit includes an operation method for setting a first standard value of a vehicle speed to determine whether the motor auxiliary joint is allowed to rotate, and a second standard value of the vehicle speed to limit the motor auxiliary joint. Rotation speed.

According to the concept of the present case, the control unit includes an operation method for calculating a suitable joint angle based on the steering wheel position information and the vehicle speed information, wherein the target joint angle is smaller than the steering of the front wheel of the articulated bus when the vehicle speed is positive Angle, and the target joint angle is greater than the steering angle of the front wheel of the articulated bus when the vehicle speed is negative.

According to the concept of the present case, the control unit includes an operation method for controlling the rotation speed of the motor auxiliary joint, wherein the rotation speed is determined according to an operation formula of a vehicle speed and a target joint angle.

According to the concept of the present case, if the control unit detects that the position of the steering wheel has not changed, it will instruct the motor auxiliary connector to maintain the target joint angle unchanged.

In order to achieve the above object, a further generalized embodiment of the present invention provides a motor auxiliary joint system for use in an articulated vehicle provided with a steerable front axle, comprising: an upper stator member and a lower stator member, all disposed on one a front frame; a flat rotor member coaxially superposed on the upper stator member and the lower stator member with at least one bearing; a cantilever member disposed on a trailer frame for pivoting to an extension member of the flat rotor member A horizontal shaft is coupled to withstand the up and down movement between the front frame and the trailer frame.

101‧‧‧Frame

102‧‧‧ trailer

103‧‧‧Lower stator member

104‧‧‧Cantilever members

105‧‧‧flat rotor

106‧‧‧Upper stator component

107‧‧‧Trailer axle

108‧‧‧lower bearing

109‧‧‧Upper bearing

110‧‧‧lower stator coil

111‧‧‧Upper stator coil

112‧‧‧Upper flat rotor magnet

113‧‧‧ Lower flat rotor magnet

114‧‧‧ Lower bearing groove

115‧‧‧Upper bearing groove

116‧‧‧ horizontal axis

117‧‧‧Rotor extension parts

The first figure is an isometric view of a first embodiment of the invention.

The second drawing is an exploded view of the first embodiment of the present invention.

The third figure is a gain scale of the present invention which discloses the relationship between the position of the steering wheel and the specified joint angle at different vehicle speeds.

The fourth figure is a data chart of the present invention which reveals the relationship between the maximum allowable rotational speed and the motor auxiliary joint at different vehicle speeds.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a more sensitive articulated joint system that is capable of more sensitive control of joint angles, thereby enhancing the driving performance of the articulated bus and the integrity of the driving system; An articulated bus typically consists of a front frame and a trailer frame, wherein the front frame and trailer frame include a set of steering front wheels, a set of intermediate wheels and a set of rear wheels, and a drive shaft coupled to the rear wheels To promote the articulated bus.

Please refer to the first figure and the second figure, which are the first embodiment of the present invention. The first and second figures disclose the basic components required to construct the present invention in an articulated bus, including an upper stator member 106 and a lower stator member 103 disposed on the front frame 101; a flat rotor 105 is disposed on the upper portion Between the stator member and the lower stator member, the two rotor extension members are coupled to a cantilever member 104 via a horizontal shaft 116 to permit up-and-down displacement between the front frame 101 and the trailer frame 102; an upper bearing 109 is mounted thereon The bearing groove 115 is interposed between the flat rotor 105 and the upper stator member 106, and the lower bearing 108 is mounted between the flat bearing 105 and the lower stator member 103 to allow between the front frame 101 and the trailer frame 102. Rotational action.

The motor auxiliary connector system also includes a control unit for reading information such as steering wheel position, street position, and vehicle speed.

Referring to the third figure, as one of the control methods disclosed in the figure, the control unit performs different calculations on the target joint angle according to the vehicle speed, wherein the target joint is when the articulated bus is traveling straight ahead at a high speed. The angle is smaller than when driving at low speed; for example, when the articulated bus is changing at 40 mph, if the steering wheel turns the steering wheel 10 degrees, the control unit sets the target joint angle to 5 degrees to obtain a higher angle. Stability; and if the articulated bus is changing at a speed of 5 miles per hour, when the steering turns the steering wheel 10 degrees, the control unit sets the target joint angle to 8 degrees for a smoother steering motion; Therefore, the control unit must adjust the angle of the target joint according to the detected vehicle speed.

As disclosed in the third figure, when the vehicle speed increases beyond a low speed standard value, the increment of the target joint angle value corresponding to the steering wheel position is relatively increased relatively, because a larger joint angle is required for steering. Action, and when the vehicle speed increases beyond another high speed standard value, the increment of the target joint angle value corresponding to the steering wheel position is relatively reduced to obtain better stability when changing the line.

As also revealed in the third figure, the target joint angle value corresponding to the steering wheel position will also increase more when the vehicle is reversed. This is because the hinged bus has more transmission shafts on the trailer axle, so when reversing Because of the position of the axle, a reverse pulling force pulls the hinge joint to a vertical position. In order to enable the articulated bus to travel on a smooth reverse rail, it is necessary to give the fish a higher value when performing the reverse motion. Increment; therefore, the control unit needs to increase the value of the target joint angle when performing the reverse action.

Referring now to the fourth figure, as disclosed in the figure, another control method of the first embodiment, wherein the maximum angular velocity of the joint is determined according to the speed of the vehicle; in the vicinity of the block near zero in the fourth figure, the articulated bus It is driven at a very low speed to properly control the motor auxiliary joint and avoid the wear of the wheel. If the speed of the articulated bus does not exceed the preset standard value, the angle of the hydraulic turret will not be allowed to change, therefore, the setting A vehicle speed standard value is necessary to determine whether or not the rotation of the motor auxiliary joint is permitted.

As also revealed in the fourth figure, it can be seen that when the vehicle speed reaches another preset high speed standard value, the control unit once again limits the maximum angular velocity of the motor auxiliary joint, because the speed of the hydraulic rotary table will be rotated at this time. It affects the stability and comfort of the vehicle. This usually occurs when the articulated bus travels on the highway. Therefore, the maximum angular velocity of the motor auxiliary joint needs to be adjusted directly with the vehicle speed.

In some applications, the functions of the magnets and coils, such as the first and second passes, are interchangeable, such as magnets disposed on the rotor or coils disposed on the stator.

101‧‧‧Frame

102‧‧‧ trailer

103‧‧‧Lower stator member

104‧‧‧Cantilever members

105‧‧‧flat rotor

106‧‧‧Upper stator component

107‧‧‧Trailer axle

108‧‧‧lower bearing

109‧‧‧Upper bearing

110‧‧‧lower stator coil

111‧‧‧Upper stator coil

112‧‧‧Upper flat rotor magnet

113‧‧‧ Lower flat rotor magnet

114‧‧‧ Lower bearing groove

115‧‧‧Upper bearing groove

116‧‧‧ horizontal axis

117‧‧‧Rotor extension parts

Claims (1)

A motor auxiliary joint system for an articulated bus, comprising:

An upper stator member and a lower stator member are disposed on a front frame;

a flat rotor member coaxially superposed on the upper stator member and the lower stator member with at least one bearing;

A cantilever member is disposed on a trailer frame for pivoting to a horizontal shaft coupled to the extension member of the flat rotor member to receive up and down movement between the front frame and the trailer frame.

2. The motor auxiliary joint system for articulated buses as described in claim 1 of the patent application, further comprising:

a vehicle speed sensor;

a steering wheel position sensor;

A control unit is configured to read data of the steering wheel position and the vehicle speed and adjust the target joint angle according to the data.

3. The motor auxiliary joint system for use in an articulated bus according to claim 2, wherein the control unit includes a calculation method for setting a low speed standard value to determine whether the flat rotor member is allowed by a vehicle speed message. Rotational action.

4. The motor auxiliary joint system for use in an articulated bus according to claim 3, wherein the control unit limits the rotation of the flat rotor member in accordance with the vehicle speed.

5. The motor auxiliary joint system for use in an articulated bus according to claim 4, wherein the control unit increases the target joint angle in the reverse mode.

6. A motor auxiliary joint system for an articulated bus, comprising:

a motor auxiliary joint containing a certain sub-body and a rotor;

a base member coupled to the stator body and the front frame;

An extension member for connecting the stator body to a trailer frame through a cantilever member to allow vertical movement;

a vehicle speed sensor;

a steering wheel position sensor;

A control unit adjusts the target joint angle based on the detected vehicle speed information and the steering wheel position information.

7. The motor auxiliary joint system for use in an articulated bus according to claim 6, wherein the control unit includes a calculation method for setting a first standard value of a vehicle speed to determine whether the motor auxiliary joint is allowed. The rotation action, and a second standard value of a vehicle speed, limits the rotational speed of the motor auxiliary joint.

8. The motor auxiliary joint system for use in an articulated bus according to claim 7, wherein the control unit includes a calculation method for calculating a suitable joint angle based on the steering wheel position information and the vehicle speed information, wherein The target joint angle is smaller than the steering angle of the front wheel of the articulated bus when the vehicle speed is positive, and the target joint angle is greater than the steering angle of the front wheel of the articulated bus when the vehicle speed is negative.

9. The motor auxiliary joint system for use in an articulated bus according to claim 8, wherein the control unit includes a calculation method for controlling a rotational speed of the motor auxiliary joint, wherein the rotational speed is based on a vehicle speed Interpret the equation with the angle of the target joint.

10. The motor auxiliary joint system for use in an articulated bus according to claim 9, wherein the control unit instructs the motor auxiliary joint to maintain the target joint angle if the position of the steering wheel is not changed. .

11. A motor-assisted joint system for an articulated vehicle provided with a steerable front axle, comprising:

An upper stator member and a lower stator member are disposed on a front frame;

a flat rotor member coaxially superposed on the upper stator member and the lower stator member with at least one bearing;

A cantilever member is disposed on a trailer frame for pivoting to a horizontal shaft coupled to the extension member of the flat rotor member to receive up and down movement between the front frame and the trailer frame.