| 摘要 |
<p>Disclosed is a control apparatus for an electric vehicle, and particularly the dynamic braking control in the event of ineffectual regenerative braking load. A dynamic braking chopper (14) is controlled at electric braking in at least three divided modes of stopping control, chopping control and full conduction control in correspondence to voltages of a filter capacitor (6). As a result, the electric braking operation can be shifted reversely from electric braking to regenerative braking, and vice versa, without opening a line breaker or applying an air brake even in the event of ineffectual regeneration and ultimate over voltage, whereby the domain of regenerative braking after the emergence of over voltage can be extended to the maximum, and consequently the torque variation can be suppressed and the operating life of such mechanical components as brake shoes and line breaker can be extended. <IMAGE></p> |
