Two-wheeled motor vehicle brake control method and system

A two-wheeled motor vehicle brake control system configured to be:

• capable of transmitting oil pressure arising in a front brake master cylinder in response to operation of a first brake operator to a front wheel cylinder via an oil pressure system,
• capable of transmitting oil pressure arising in a rear brake master cylinder in response to operation of a second brake operator to a rear wheel cylinder via an oil pressure system,
• capable of discharging brake fluid of the front wheel cylinder to a front reservoir as desired, and
• capable of detecting an occurrence of lifting of a rear wheel,
• wherein the brake control system is further configured to immediately reduce a brake pressure of the front wheel when lifting of the rear wheel is detected, wherein a pressure reduction amount of the brake pressure is set in response to a magnitude of a predetermined parameter that becomes an index of lifting of the rear wheel,
• characterized in that the predetermined parameter is vehicle body deceleration or an amount of change in vehicle body deceleration or the brake pressure of the front wheel or a magnitude of a pressure increase amount of the brake pressure, and wherein pressure reduction of the brake pressure of the front wheel is performed in a stepwise manner while lifting of the rear wheel is being detected.