Vehicle, vehicle control device, and vehicle manufacturing method

A vehicle control device comprising:

• a blocking member displayed so as to block a lower end portion of a view within a forward field of vision of a driver along a lower end portion of a windshield glass, a shape of a top edge of the blocking member being changeable;
• a vehicle speed detecting section detecting vehicle speed;
• and
• a shape modification section modifying the shape of the top edge of the blocking member such that relative movement of the road is expressed as flow lines and the shape of the top edge of the blocking member becomes parallel or substantially parallel to a curve that is generated by a processor by making the flow lines continuous at a time when the vehicle travels at a vehicle speed detected by the vehicle speed detecting section, while minute steering is carried out, and the curve is expressed by the following function:
• y2=Ax2+2Bx+C
• where x is a depression angle, y is an azimuth angle, A is a constant expressed by a sum of a ratio of a distance between a viewpoint height and a roll axis with respect to the viewpoint height and a reciprocal of a product of a roll rate and the viewpoint height, B is a constant expressed by a reciprocal of the roll rate, and C is a constant expressed by the constant A, the constant B and a depression angle of a sight-line direction of a driver.

A method of manufacturing a vehicle, comprising:

• at a time when the vehicle travels at a predetermined vehicle speed while minute steering is carried out, expressing relative movement of the road as flow lines;
• and generating a curve by making the flow lines continuous based on a mathematical representation of a velocity of the forward view in the forward field of vision of the driver;
• and
• manufacturing a vehicle such that a shape of a boundary line between a forward view in a forward field of vision of a driver and a vehicle structural part that blocks a lower end of the forward view, is parallel or substantially parallel to the curve, the curve being expressed by the following function:
• y2=Ax2+2Bx+C
• where x is a depression angle, y is an azimuth angle, A is a constant expressed by a sum of a ratio of a distance between a viewpoint height and a roll axis with respect to the viewpoint height and a reciprocal of a product of a roll rate and the viewpoint height, B is a constant expressed by a reciprocal of the roll rate, and C is a constant expressed by the constant A, the constant B and a depression angle of a sight-line direction of a driver.