Abstract: A lane change control method applied to a vehicle-mounted device is provided. The method includes calculating a first risk factor of a preceding vehicle based on a first vehicle data and a second vehicle data, calculating a second risk factor of an adjacent preceding vehicle based on the first vehicle data and a third vehicle data. A risk weight is obtained according to the first risk factor and the second risk factor. A lane-change weight is calculated based on a target lane line. A collective weight is obtained according to the lane-change weight and the risk weight. Once a plurality of reference vehicle values is obtained, the host vehicle is controlled to change lanes based on the plurality of reference vehicle values, the lane-change weight, and the first vehicle data.

Abstract: The present disclosure provides a method of supplying fuel for a motorcycle engine. The method includes the following steps. A tank, a pipe and an injector are provided, and the pipe is connected between the tank and the injector. Fuel in the tank is transported to the injector through the pipe, and a pressure of the fuel in the pipe is in a range larger than 2.5 and smaller than or equal to 4.0 kg/cm2.

Abstract: A metal alloy applied to manufacture a club weight member of a golf club head includes carbon less than 0.08% by weight, silicon of about 0.5% to about 2.0% by weight, manganese of about 0.5% to about 2.0% by weight, nickel of about 5.0% to about 15.0% by weight, chromium of about 15.0% to about 30.0% by weight, tungsten of about 5.0% to about 15.0% by weight and the balance is essential iron. Accordingly, the metal alloy has a high degree of mechanical strength and extensibility, and functions as a weight material of the golf club head.