Hybrid vehicle regenerative electric energy control system, hybrid vehicle, and regenerative electric energy control method for hybrid vehicle

摘要

When a road grade (G) of a travelling spot of a hybrid vehicle is a down grade equal to or greater than a set grade threshold value (G1) that has been set in advance, control is performed to calculate a desired regenerative power amount (Et), which is a desired value for the regenerative power amount of a motor generator (31), by adding a corrective regenerative power amount (Ec), which is set as a monotonically increasing function of the magnitude of the down gradient (G) of the travelling spot, to a basic regenerative power amount (Eb), which is a regenerative power amount set on the basis of the travelling status of the hybrid vehicle.