A torque filter control method for vehicle controller
A vehicle controller and filter control technology, applied in the direction of control drive, electric vehicles, vehicle components, etc., can solve the problems of torque response time delay, affecting vehicle economy, braking weakening, etc., to improve torque control, enhance Energy recovery effect, vibration avoidance effect
Active Publication Date: 2018-02-06
苏州海格电控股份有限公司 +2
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Problems solved by technology
Although the vibration can be reduced, the torque response time will be greatly delayed, usually 1.5s to 2s, which will cause problems such as slowing down of acceleration and weakening of braking, which will affect the economy of the vehicle
Method used
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Embodiment Construction
[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0029] Embodiments of the invention include:
[0030] Such as Figure 3-Figure 4 As shown, a torque filter control method for the vehicle controller is used to adjust the current torque to the demand torque, including the following steps:
[0031] (1) Obtain the current time, current torque, filter period, last filter time and last filter torque;
[0032] (2) Determine whether the current time is greater than or equal to the sum of the last filtering time and the filtering period:
[0033] If the current time is g...
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The invention discloses a torque filter control method used for a whole vehicle controller. The torque filter control method comprises the following steps: (1), current time, a current torque, a filter cycle, last filter time and a last filter torque are acquired; (2), whether the current time is larger than or equal to the sum of the last filter time and the filter cycle or not is determined; (3), a rising limiting value and a declining limiting value are sought and acquired; (4), whether the current torque is smaller than or equal to the difference between the last filter torque and the declining limiting value or not is determined; and (5), the current time is saved as the last filter time, and the current filter torque is saved as the last filter torque. Through the above mode, the smoothness of torque switchover is improved; the comfort of vehicle driving is enhanced; the acceleration property is improved; the energy recovery effect is improved; and the torque filter control method has a wide market prospect in popularization of torque filter control methods for the whole vehicle controller.
Description
technical field [0001] The invention relates to the field of torque filter control, in particular to a torque filter control method for a vehicle controller. Background technique [0002] In the vehicle control of the direct drive system, for the engine and the drive motor, the torque control is mainly used; especially for the control of the drive motor, there are at least forward drive (driving the vehicle forward), reverse braking (energy Recovery) control two modes, during the whole driving process, the switching between these two controls is relatively frequent. [0003] In the actual driving process, there is the possibility of sudden sudden changes in driving and braking, such as the sudden release of the accelerator during normal driving, or sudden acceleration during coasting (stepping on the accelerator vigorously). The response time is usually less than 20ms (communication cycle) when the direction drive changes to reverse braking (or reverse braking changes to fo...
Claims
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IPC IPC(8): B60L15/20
CPCB60L15/2009B60L15/2072Y02T10/72
Inventor 蒋中浦信吴新兵陈雪荣张卫林熊金峰
Owner 苏州海格电控股份有限公司