Driving force control with gradient resistance torque dependent correction factor

A driving force control system for an automotive vehicle having an accelerator pedal, an engine, and an automatic transmission, comprising:

• an ordinary target driving force generator generating ordinary target driving force in response to operator manipulation of the accelerator pedal and vehicle speed;
• a running resistance increment generator including a standard resistance generator that generates standard resistance, said running resistance increment generator being operative to determine an increment in running resistance from said standard resistance;
• a driving force correction generator converts said increment in running resistance into said driving force correction over a portion of variations of said increment in running resistance at a rate that is variable in response to said increment in running resistance;
• a corrected driving force generator determining corrected target driving force by adding said driving force correction to said ordinary target driving force;
• a target engine torque generator generating a target engine torque in response to said corrected target driving force;
• and
• a target ratio generator generating a target ratio in response to said corrected target driving force.