Braking Control Method in Regenerative Braking Cooperative Control
A regenerative braking and collaborative control technology, applied in the braking control system, control drive, brake and other directions, can solve the problems of large changes in braking torque and driver's braking discomfort, so as to improve marketability and eliminate discomfort. Effect
Active Publication Date: 2021-07-16
HYUNDAI MOTOR CO LTD
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Problems solved by technology
Therefore, in the coordination interval, the frictional braking torque increases and thus the friction coefficient of the brake pads increases, so that the braking torque varies greatly, and as a result, the driver feels when braking as the braking deceleration changes unwell
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[0035] Reference will now be made in detail to various embodiments of the invention, examples of which are illustrated in the accompanying drawings and described below. While the invention will be described in conjunction with exemplary embodiments, it will be understood that present description is not intended to limit the invention to those exemplary embodiments. On the contrary, the invention is intended to cover not only the exemplary embodiments, but also various alternatives, modifications, equivalents and other implementations, which may be included within the spirit and scope of the invention as defined by the appended claims. Program.
[0036] The present invention relates to a brake control method for reducing driver's discomfort due to the phenomenon of increase in vehicle deceleration during regenerative braking cooperative control and variation in vehicle deceleration occurring at the time of vehicle stop feel.
[0037] Specifically, the present invention provides...
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The present invention relates to a braking control method in regenerative braking cooperative control, the braking control method includes the steps of: (i) confirming whether to enter the coordination interval in which the regenerative braking torque decreases and the frictional braking torque increases; (ii) in the When entering the coordination interval, a target reduced deceleration is determined by the controller; (iii) the braking torque of the vehicle is reduced in response to the determined target reduced deceleration; (iv) when the vehicle is stopped, the vehicle's braking torque is reduced. The braking torque returns to the driver's desired braking torque.
Description
technical field [0001] The present invention relates to a braking control method capable of stopping a vehicle equipped with a regenerative braking cooperative control system. Background technique [0002] Motor-driven vehicles (eg, hybrid vehicles and electric vehicles) use regenerative braking to provide high fuel efficiency. During the braking of the vehicle, the regenerative braking system converts the kinetic energy of the vehicle into electrical energy and stores it in the battery. When the vehicle is running, the regenerative braking system uses the electrical energy stored in the battery as the kinetic energy of the vehicle, thereby improving fuel efficiency. In order to realize such a regenerative braking system, a regenerative braking cooperative control technique for controlling the sum of the regenerative braking torque generated in the motor during regenerative braking and the frictional braking torque generated in braking is required is equal to the driver's ...
Claims
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IPC IPC(8): B60L7/26
CPCB60L7/26B60T1/10B60L15/2009B60L58/13B60L7/18B60L2240/16B60L2240/54B60L2240/80B60L2250/26B60T8/172B60T2220/04B60T2230/04B60T2270/604Y02T10/64Y02T10/70B60W20/14B60L58/12B60L7/22B60W30/18127B60W50/10B60L2240/12B60Y2200/91B60Y2200/92B60W10/18B60L2260/22B60Y2400/81B60T8/28B60T8/321
Inventor 金仁洙李想协
Owner HYUNDAI MOTOR CO LTD