Engine providing a self-adjusting system and a method to save fuel in accordance with a practical driving state of a vehicle

An engine providing a self-adjusting system in accordance with a practical driving state of a vehicle comprising an information center and a plurality of onboard computers connected to said information center;

• each onboard computer including:
• a GPS module for acquiring information of a current location of said vehicle and sending said information to said information center;
• a driving data collecting module for collecting running data of said vehicle;
• said running data of said vehicle including vehicle speed, engine speed, engine torque, position of the accelerator pedal, and position of the breaking pedal;
• a vehicle parameter and engine data module for storing a vehicle configuring and engine operating parameter according to different power requirements;
• a computing module for computing a current driving parameter according to said driving data from said driving data collecting module;
• said current driving parameter including acceleration of said vehicle, a change rate of said accelerator pedal position, and gear of said vehicle;
• said computing module cooperating with said vehicle configuring coefficient from said vehicle parameter and engine data module so as to figure out the current road resistance characteristic coefficient;
• a decision module acquiring a standard road resistance characteristic coefficient from a route-optimized module, current road information from a map data module, and said current driving parameter from said computing module so as to judge the total power requirement of said vehicle;
• a correspondent engine operating parameter is acquired from said vehicle parameter and engine data module in accordance with said power requirement of said vehicle;
• a vehicle controlling module for receiving said engine operating parameter and controlling the output features of said engine;
• said information center including:
• a map data module for storing map information and calling said current road information in accordance with said information of said current location of said vehicle from said GPS module;
• a history data module connected with said onboard computers for storing said current road resistance characteristic coefficient computed by said computing module when each onboard computer passes its current route recently;
• said history data module analyzing and comparing said current road resistance characteristic coefficients from different onboard computers;
• and
• a route-optimized module connected with said history data module for calling said standard road resistance characteristic coefficient corresponding to said current road information;
• said route-optimized module further sending said standard road resistance characteristic coefficient corresponding to said current location to said decision module of said onboard computers.