A vehicle air bag apparatus includes an air bag disposed anterior to an occupant seat, a peripheral wall portion that surrounds the air bag from outside, and a lid upper wall portion that closes an upper surface opening in the peripheral wall portion, the air bag being inflated and deployed outward through the upper surface opening. The vehicle air bag apparatus includes a rib, disposed in a rear-side corner portion that assumes a portion at which an upper end portion of the peripheral wall portion is connected with the lid upper wall portion. The rib connects the upper end portion of the peripheral wall portion with the lid upper wall portion.

An accident determination system that determines an occurrence of an accident in a straddle-type vehicle, includes a stop detection unit, an end operation unit and a weight detection unit, a control unit. The stop detection unit detects a vehicle stop of the straddle-type vehicle. The end operation unit receives a driving end operation performed by an occupant. The weight detection unit detects a weight value according to a posture of the occupant. The control unit determines whether the vehicle stop is caused by dismounting based on a detection result of the stop detection unit and an operation result of the end operation unit, and determines an occurrence of an accident based on a detection result of the weight detection unit during the vehicle stop caused by a reason other than dismounting.

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.

To obtain a straddle-type vehicle information processor and a straddle-type vehicle information processing method capable of recognizing that a straddle-type vehicle has crashed during travel with a high degree of accuracy at appropriate timing to contribute to improvement in occupant safety.

A straddle-type vehicle information processor 10 includes: a travel state information acquisition section 11 that acquires, as information related to a travel state of a straddle-type vehicle 1, a physical quantity set that is configured to include at least two types of physical quantities; a crash recognition section 12 that acquires a Mahalanobis distance with respect to a referred sample group of the physical quantity set and determines whether the crash has occurred on the basis of a relationship between the Mahalanobis distance and a reference value; and an output section 13 that makes output corresponding to the recognition of the crash by the crash recognition section 12.

A method and computer program are provided for operating a motorized two-wheeled vehicle, in particular a motorcycle that includes a sensor system for accident recognition that generates measuring signals. The sensor system is used for recognizing a rotation of a front wheel of the two-wheeled vehicle that deviates from a normal steering movement and allows an inference concerning a collision of the two-wheeled vehicle with another object. Moreover, the invention relates to a computer program for carrying out the method.

A saddle riding vehicle airbag device can be disposed compactly and the airbag can be deployed vertically upward. In the saddle riding vehicle airbag device provided with a retainer that is provided in front of a seat for a rider, an inflator and an airbag that is housed in the retainer, is inflated by means of a gas discharged from the inflator and is deployed in front of the rider, in which the retainer is provided with an L-shaped airbag passage that causes the airbag to deploy upward in a left-right direction, and, in a deployed state, the airbag is formed bilaterally asymmetrical with respect to a left-right center line of the airbag.

Coupling spots are properly protected upon reception of gas pressure. A seam is possessed as a partition that partitions the interior of an airbag, and the seam is a coupling spot along which a frontal-side base fabric and a backside base fabric are coupled to each other. First and second reinforcing fabrics are provided on inner sides of the frontal-side base fabric and the backside base fabric, and the first and second reinforcing fabrics have remaining margins that are oriented toward the gas supply side in the downward direction rather than toward the seam, and each of the remaining margins functions as a shield wall against a flow of gas toward the seam.

A protective system is provided including an airbag system for protecting a body part of a user in case of an accident, including a control unit and a communication interface. The protective system further includes an external device having a communication interface. The communication interface of the airbag system is configured to communicate with the external device using wireless communication.

An object is identified by an on-board camera and a relative speed of the vehicle and the object is acquired. If the object is a two-wheel vehicle and the relative speed is lower than the vehicle speed, the relative speed is set as a collision speed. If the object is an object other than a two-wheel vehicle, the vehicle speed is set as the collision speed. Using the set collision speed, an effective mass is computed and collision determination is executed.

Gas is properly fed into a head facing portion while upsizing of an inflator is prevented. Throttle portions are provided for coupling between a frontal side and a backside of an airbag between a neck portion and a head facing portion. Seams are formed as contours of the throttle portions positioned outermost the airbag in a width direction. The seams are parallel to side edge portions, of the airbag positioned outside the seams in the width direction. Seams are formed as contours opposed to the throttle portions arranged adjacent to each other. The seams are approximately parallel to each other.