As a rule, a distance related driving speed of the method in accordance with the required acceleration and the desired torque md.sub.des

摘要

PROBLEM TO BE SOLVED: To perform vehicle speed control fit for a travel feeling of a driver by preventing the occurrence of trade-off by limiting target acceleration/ deceleration on the basis of one's own vehicle speed by target acceleration/ deceleration control means.;SOLUTION: A vehicle speed control means has target acceleration/ deceleration operation means (S1 to S3), a preceding vehicle capture detecting means (S4), target acceleration/deceleration control means (S5 to S9, S12, S13), acceleration time control means (S14 to S17) and acceleration limiting/increasing means (S14 to S16 and S18). For example, target acceleration/deceleration α*is arithmetically operated so as to make one's own vehicle speed VS coincide with a target vehicle speed V* arithmetically operated to make an actual distance L between two cars coincide with a target distance L* between two cars (S7), and a throttle actuator, an automatic transmission and a braking device are controlled on the basis of this target acceleration/deceleration α* to perform acceleration/deceleration control (S11). In this case, since the target acceleration/ deceleration α* is limited according to one's own vehicle speed VS, optimal acceleration/deceleration control can be performed without imparting a sense of incompatibility to a driver.;COPYRIGHT: (C)2000,JPO