The present invention is a motorcycle theft prevention system that comprises a tilt switch and a control circuit. After the user installed the present invention, the control circuit stays in the deactivated state until the motorcycle is oriented to a different angle. When the motorcycle is oriented to a different angle, the control circuit activates the horn and light source to warn the user of possible theft.

An on-vehicle communication system of an embodiment includes: an antenna that is provided on a vehicle and performs a close-range communication with a user terminal device present in a communication area around the vehicle; and a control portion that is provided on the vehicle and executes a predetermined authentication process when a radio wave strength of a signal received from the user terminal device via the antenna or a signal received by the user terminal device from the antenna is equal to or more than a threshold value, wherein the control portion notifies a user of information on a target communication position at which the user terminal device should be located when registering the threshold value by using a notification portion.

An engine starting device includes: a portable unit including a transmitting unit capable of transmitting an ID code inherent to a vehicle; a control unit having a substrate on which a receiving unit receiving the ID code, and a determination unit configured to determine whether the received ID code is a pre-registered legitimate ID are formed; a main body part including an operation knob rotationally operated between an off position and an on position, and fixed between a bar-shaped handle and a speed meter of the vehicle; and a regulation unit configured to regulate a rotational operation of the operation knob, and to release a rotation-regulated state of the operation knob on condition that the received ID code is determined as a legitimate ID. The main body part, the control unit and the regulation unit are integrally formed to configure an integral unit.

A lock apparatus includes a bracket, an engagement module, and an actuation module. The engagement module is supported in the bracket and has an engagement member configured to move to a first position or a second position in a first axial direction along the first axial direction. The actuation module is connected to the bracket and includes a pushing member. The actuation module drives the pushing member to move to a first position or a second position in the second axial direction along the second axial direction. When the pushing member is at the first position in the second axial direction, the engagement member is at the first position in the first axial direction. When the pushing member is at the second position in the second axial direction, the engagement member is at the second position in the first axial direction.

A vehicle is equipped with a docking station for a driver's smart device. The smart device displays engine related and other information to the driver while operating the vehicle. The smart device provides a supplementary screen to the screen installed in the vehicle at manufacture, or acts as an alternative to having a screen installed at manufacture. The docked smart device replaces one or more of the instruments normally present in a vehicle dashboard or motorcycle instrument cluster. The smart device also controls operation of the vehicle.

A vehicle includes a controller. The controller is configured to perform authentication of a portable device by communication with the portable device when startup of a system of the vehicle is instructed, when the system is off, or when the startup of the system of the vehicle is instructed and the system is off. The controller is configured to perform the startup of the system of the vehicle when the startup of the system of the vehicle is instructed, under a condition that the authentication of the portable device is successful. The controller is configured to perform reauthentication of the portable device when predetermined movement of the vehicle is detected after the startup of the system of the vehicle, and perform theft prevention processing when the reauthentication of the portable device fails.

A system having a motorcycle and a transportable radio device. The motorcycle has a frame with a steering head bearing seat and a drive unit, and a switch unit and a control device. The control device has wireless communication with the radio device for controlling operating modes of the motorcycle, depending on an authentication information transmitted from the radio device to the control device. The control device is configured for wireless transmission to the radio device of a blocking information which shifts the radio device into a sleep mode, in which mode communication of the radio device to the control device ceases. The control device also is configured for wireless transmission of a first and/or second piece of time interval information relating to the length of a first and/or second time interval to the radio device, at the end of which the radio device is shifted into the sleep mode.

A transmission for a motorcycle includes a housing, at least one shaft at least partially accommodated in the housing and which can be rotated relative to the housing, and a locking device having at least one locking element located in the housing. The at least one locking element is movable moved relative to the housing between at least one locking position in which the at least one locking element secures the shaft against rotation relative to the housing, and at least one release position in which the at least one locking element releases the shaft for rotation relative to the housing.

To provide an attachment structure of a smart key unit for a motorcycle that can reduce a size of an attachment structure of a smart key unit around a head pipe. In an attachment structure of a smart key unit for a motorcycle that can cause an engine of a motorcycle to be in a startable state under a condition that an ID code transmitted from a smart key K that can be carried by a driver matches a normal ID code, the smart key unit is attached at a position in the rear of a head pipe included in a vehicle, and the smart key unit is arranged in a state in which a longitudinal direction M thereof is substantially orthogonal to a back and forth direction of the vehicle.

An improved enclosed electric motorcycle has an electric motor directly driving the rear wheel with a chain or a belt. A pair of steering handles and an accelerator foot pedal enables a driver to drive the motorcycle like an automobile. The pair of the landing wheel assemblies individually has a take-up assembly to reduce their sprung weights, and has an electric motor to increase reliability. By adding a pair of anti-skid wheels, the driver can avoid many accidents. An inflatable safety belt and a pair of side airbags will protect the driver in an accident. If the battery pack explodes, it will be ejected away from the motorcycle to protect the driver. A drive-in electric engaging device enables the driver to drive the motorcycle to engage with a stationary charging station for charging its battery pack while parking.