Controller of an engine driving generator for an electric vehicle
First Claim
1. A controller for controlling the operation of an engine driven generator in an electric vehicle incorporating a motor to be driven by electric power derived from a battery wherein said engine driven generator charges the battery, said battery being supplied with a regenerative power generated at the time of regenerative braking of said motor, the controller comprising:
- regenerative braking detection means for detecting the start of regenerative braking;
voltage detection means for detecting a battery voltage; and
control means for receiving said detection values from said detection means and, in response to a battery voltage at the start of regenerative braking, for controlling the start of said engine driven generator.
1 Assignment
0 Petitions
Accused Products
Abstract
Controller 40 receives accelerator opening and brake depressing amounts, and the output of an ammeter 30 and voltmeter 32 as inputs. In response to the state of these input signals, the controller 40 determines the timing to detect the state of charge (SOC) of the battery 10 and detects the SOC of the battery 10. That is, it is first judged that the SOC is not more than a predetermined value if the voltage of the battery 10 is not more than a predetermined value when the accelerator opening is not more than a predetermined value. It is next judged that the SOC is not more than a predetermined value if the voltage of the battery 10 is not more than a predetermined value when the brake is depressed beyond a certain degree. In these cases, the engine 24 is driven to cause a generator 22 to perform generation of electricity to charge the battery 10.
39 Citations
6 Claims
-
1. A controller for controlling the operation of an engine driven generator in an electric vehicle incorporating a motor to be driven by electric power derived from a battery wherein said engine driven generator charges the battery, said battery being supplied with a regenerative power generated at the time of regenerative braking of said motor, the controller comprising:
-
regenerative braking detection means for detecting the start of regenerative braking; voltage detection means for detecting a battery voltage; and control means for receiving said detection values from said detection means and, in response to a battery voltage at the start of regenerative braking, for controlling the start of said engine driven generator. - View Dependent Claims (2, 3, 4, 5, 6)
-
Specification