The present invention relates to a self propelled walker enabling a safe and a stable walker which moves with the user and does not compromise stability. The present invention of a self propelled walker provides wheels on all four contact points to the ground. The wheels are motorized and locking, so the user does not have to exert energy to propel the walker forward. The motors are connected to a touch screen control device and a motion sensor. The motion sensor detects the movement speed of the user to keep the walker in proper position while the user is walking. When being leaned on heavily the wheels lock, providing a stable support device.

The present invention relates to a bogie structure for a mountain railway car. The bogie structure is configured as follows: a traction motor for driving an axle of mountain railway car is installed on a car body to simplify the bogie structure and to minimized interference between the traction motor and other components constituting the bogie, and a first and a second bearing are respectively inserted and installed between a first and a second axle and a first and a second wheel, so that a first and a second wheel located in one side close to a turning center are rotated less than a first and a second wheel located in the other side opposite thereof and a traveling distance of the wheels located in the turning-centered side is generated corresponding to a length of a turning-centered side railway, whereby the mountain railway car is improved in traveling stability.

A braking system for a steel wheeled vehicle is provided. The braking system includes an actuator assembly and a brake member operably engaged with the actuator assembly. The brake member contacts a flat surface of a wheel of the steel wheeled vehicle. A method for applying brakes to a steel wheeled vehicle is also provided. The method includes applying brake pressure, via a brake member, to a flat surface of a wheel of the steel wheeled vehicle.

A braking system for a steel wheeled vehicle is provided. The braking system includes an actuator assembly and a brake member operably engaged with the actuator assembly. The brake member contacts a flat surface of a wheel of the steel wheeled vehicle. A method for applying brakes to a steel wheeled vehicle is also provided. The method includes applying brake pressure, via a brake member, to a flat surface of a wheel of the steel wheeled vehicle.

The present invention relates to a bogie structure for a mountain railway car. The bogie structure is configured as follows: a traction motor for driving an axle of mountain railway car is installed on a car body to simplify the bogie structure and to minimized interference between the traction motor and other components constituting the bogie, and a first and a second bearing are respectively inserted and installed between a first and a second axle and a first and a second wheel, so that a first and a second wheel located in one side close to a turning center are rotated less than a first and a second wheel located in the other side opposite thereof and a traveling distance of the wheels located in the turning-centered side is generated corresponding to a length of a turning-centered side railway, whereby the mountain railway car is improved in traveling stability.

An anti-skid system for an electromechanical braking system of at least one vehicle including at least one wheel is described, comprising an anti-skid module arranged to execute a predetermined anti-skid function and a supervisor module arranged to monitor the anti-skid module, wherein the supervisor module includes a braking force application request adjustment module, wherein the supervisor module and the anti-skid module are modules that are distinct from each other, and the braking force application request adjustment module is arranged to adjust a braking force application request signal independently of the execution of the anti-skid function by the anti-skid module.

An anti-skid system for an electromechanical braking system of at least one vehicle including at least one wheel is described, comprising an anti-skid module arranged to execute a predetermined anti-skid function and a supervisor module arranged to monitor the anti-skid module, wherein the supervisor module includes a braking force application request adjustment module, wherein the supervisor module and the anti-skid module are modules that are distinct from each other, and the braking force application request adjustment module is arranged to adjust a braking force application request signal independently of the execution of the anti-skid function by the anti-skid module.