Output torque control system
A technology of output torque and control system, applied in the direction of control drive, control device, transportation and packaging, etc., can solve problems such as vehicle acceleration
Active Publication Date: 2014-12-10
MITSUBISHI MOTORS CORP
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- Application Information
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Problems solved by technology
[0004] In the technology disclosed in Patent Document 1, however, when the accelerator pedal is depressed by the same amount, the increase in the output torque of the electric motor is equal in both cases where the vehicle is rapidly accelerated and the vehicle is moderately accelerated.
[0005] Therefore, with the technique disclosed in Patent Document 1, it is difficult to accelerate the vehicle according to the driver's desire
Method used
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Embodiment Construction
[0028] According to the embodiment of the present invention, the output torque control system will refer to Figure 1-9 to describe. figure 1 is a schematic diagram showing the motor vehicle 1 including the output torque control system 100 of the present embodiment. Such as figure 1 As shown, a motor vehicle 1 includes a pair of front wheels 2 , a pair of rear wheels 3 , an electric motor 4 as an example of a motor, and a reduction gear 5 , and is a motor vehicle 1 capable of being driven by the electric motor 4 . The rear wheel 3 is connected to the electric motor 4 through a reduction gear 5 . The rotation of the electric motor 4 is transmitted to the rear wheels 3 through the reduction gear 5 . When this happens, the rear wheels 3 start to rotate to drive the motor vehicle 1 . The rear wheels 3 constitute drive wheels that are rotated by the electric motor 4 .
[0029] The motor vehicle 1 further includes a battery unit 20 for supplying electric power to the electric m...
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An output torque control system includes a control unit (80) which includes an acceleration mode detection unit (50) and an output torque control unit (23). The acceleration mode detection unit (50) selects a normal acceleration mode which includes output torque information indicating an increased amount of output torque of an electric motor (4) as time elapses or a rapid acceleration mode which includes output torque information indicating the increased amount of output torque of the electric motor (4) as time elapses more largely than in the normal acceleration mode based on a result of a detection by a depressing speed detection unit (50). The output torque control unit (23) selects one of the output torque information which corresponds to the result of the detection by the acceleration mode detection unit (50) to control the output torque produced by the electric motor (4) based on the selected output torque information.
Description
Background technique [0001] The invention relates to an output torque control system for controlling the output torque generated by an electric motor. [0002] For a vehicle including an electric motor as its drive source, there has been a technique of controlling the torque output from the electric motor according to the depression amount of the accelerator pedal (refer to Patent Document 1). [0003] When the vehicle is started, the vehicle is started to accelerate rapidly or is started to accelerate moderately. When the vehicle is rapidly accelerated, the output torque of the electric motor is required to increase instantaneously. When the speed of the vehicle is moderately increased, the output torque of the electric motor is required to be moderately increased. [0004] In the technology disclosed in Patent Document 1, however, when the accelerator pedal is depressed by the same amount, the increase in the output torque of the electric motor is equal both when the vehic...
Claims
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IPC IPC(8): B60L15/20
CPCB60L2240/80B60L2240/423B60L15/20B60L15/2072Y02T10/7275B60L2250/28B60L2250/26B60L2240/12B60L2240/42Y02T10/642B60L11/1803Y02T10/7005B60L50/51Y02T10/64Y02T10/70Y02T10/72
Inventor 桥坂明佐野喜亮宫本宽明松见敏行初见典彦杉本乔纪初田康之寺川典隆竹尾刚仲仪丰
Owner MITSUBISHI MOTORS CORP