The present application discloses systems and methods to present information to recreational vehicle riders and to provide customizable visual information to recreational vehicle riders. The present application further discloses systems and methods to connect and transmit audio information between a driver portable communication device and a driver audio interface device through the recreational vehicle and audio information between a passenger portable communication device and a passenger audio interface device.

A drive assistance device for a saddle riding-type vehicle includes an outside detecting part that detects a situation around the vehicle, a brake device that brakes a host vehicle, a driving device that drives the host vehicle, and a controller that controls operation of the brake device and the driving device, and the controller performs following-travel-control that causes the host vehicle to travel with a first vehicular gap while following a preceding vehicle by actuating at least one of the brake device and the driving device, adjusts actuation of at least one of the brake device and the driving device when the outside detecting part detects a corner in a direction in which the host vehicle advances while the following-travel-control is performed, and performs control of setting a vehicular gap with respect to the preceding vehicle as a second vehicular gap that is greater than the first vehicular gap.

A drive assistance device for a saddle riding-type vehicle includes an outside detecting part that detects a situation around the vehicle, a brake device that brakes a host vehicle, a driving device that drives the host vehicle, and a controller that controls operation of the brake device and the driving device, and the controller performs following-travel-control that causes the host vehicle to travel with a first vehicular gap while following a preceding vehicle by actuating at least one of the brake device and the driving device, adjusts actuation of at least one of the brake device and the driving device when the outside detecting part detects a corner in a direction in which the host vehicle advances while the following-travel-control is performed, and performs control of setting a vehicular gap with respect to the preceding vehicle as a second vehicular gap that is greater than the first vehicular gap.

The disclosed computer-implemented method may include detecting a throttle position of a micromobility vehicle (MV) and determining an acceleration of the MV based at least on the throttle position. The acceleration is associated with a torque magnitude of the MV. The method also includes comparing the acceleration with a target acceleration associated with the throttle position. The method further includes modifying the torque magnitude based at least on the comparison of the acceleration of the MV with the target acceleration associated with the throttle position. Various other methods, systems, and computer-readable media are also disclosed.

The disclosed computer-implemented method may include detecting a throttle position of a micromobility vehicle (MV) and determining an acceleration of the MV based at least on the throttle position. The acceleration is associated with a torque magnitude of the MV. The method also includes comparing the acceleration with a target acceleration associated with the throttle position. The method further includes modifying the torque magnitude based at least on the comparison of the acceleration of the MV with the target acceleration associated with the throttle position. Various other methods, systems, and computer-readable media are also disclosed.

An operation parameter detecting apparatus for a vehicle is provided to obtain a pedaling torque value, an angle of a central shaft with a magnetic ring, a corresponded rotating speed and a corresponded pedaling power, respectively by measuring an electromagnetic force of a coil induced by a magnetic variation due to a deformation of a covered magnetic sleeve linked to a central shaft, a voltage output from at least a Hall corresponded to a magnetic flux density of which the distribution in a 1, 2 or 3 dimensional space is partly a monotonic increasing or decreasing function in an area with the same polarity, and at calculation relative to the time.

A control system is provided to improve riding comfort of a human-powered vehicle. The control system includes an electronic controller and a receiver. The electronic controller is configured to control a first electric component of a first human-powered vehicle. The receiver is configured to receive first reference information related to a vehicle that differs from the first human-powered vehicle. The electronic controller is configured to control the first electric component based on the first reference information.

A control system is provided to improve riding comfort of a human-powered vehicle. The control system includes an electronic controller and a receiver. The electronic controller is configured to control a first electric component of a first human-powered vehicle. The receiver is configured to receive first reference information related to a vehicle that differs from the first human-powered vehicle. The electronic controller is configured to control the first electric component based on the first reference information.

A dynamic training system provides elevated load and energy demand on a rider of a moving bicycle out on the road or track. Resistance to movement of the bicycle is provided by a resistance unit which may include an eddy current brake. A processor may generate a control signal that adjusts the resistance to replicate the effort of riding a predetermined course or training protocol. Multiple riders at different times or locations can compete on a common virtual course. A stronger rider can be restrained by a heavier imposed load to keep pace together with a weaker rider, without compromising total power expenditure to keep the riders together.

A saddle riding vehicle includes an internal combustion engine having a crankshaft, a starter motor having a rotary shaft connected to the crankshaft, a main shaft connected to the crankshaft, a countershaft connected to the main shaft and configured to transmit power to a driving wheel, a battery configured to supply electric power to the starter motor, a rotation detector configured to detect a rotation state of the crankshaft, an acquisition part configured to acquire a rotational speed on the basis of the rotation state detected by the rotation detector, and a controller configured to stop the starter motor in a case the rotational speed is equal to or smaller than first threshold in a state in which the rotary shaft, the crankshaft, the main shaft and the countershaft are connected.