Drive control system for vehicle
A drive control and vehicle technology, which is applied to the layout of control devices, vehicle components, power plant control mechanisms, etc., can solve the problems of low engine responsiveness, and achieve the effect of improving driving experience, good driving experience, and comfortable driving
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no. 1 example ）
[0118] Figure 5 An example of drive control during acceleration is shown. The disclosed technology is not limited to acceleration, but can also be used for deceleration, but for convenience, acceleration is taken as an example for description.
[0119] Figure 6 Output waveforms of actuators and the like corresponding to this drive control are shown. In this specific example, the engine 2 , the drive motor 3 , and the brake 14 are exemplified as actuators to be controlled.
[0120] Figure 6 The first graph related to the required output value and the target output value, the second graph related to the engine 2, the third graph related to the drive motor 3, the fourth graph related to the brake 14, and the actual output are shown in order from above. Value-related fifth chart. These graphs show output waveforms representing temporal changes in torque (driving force or braking force). The torque shown by these output waveforms corresponds to the driving force output to ...
no. 2 example ）
[0135] In the first specific example, each actuator is individually controlled based on predetermined conditions set in advance. On the other hand, in the second specific example, the actuators are sequentially controlled according to the order of priority.
[0136] Specifically, as Figure 4 As shown, the control device 25 is provided with a priority setting unit 25e for performing this kind of control. The priorities of the respective actuators are set in advance in the priority setting unit 25e based on predetermined conditions. The predetermined conditions are, for example, constraints of the actuator, responsiveness of the actuator, execution accuracy of the actuator, execution capability of the actuator, and the like.
[0137] As a specific example of the restriction of the actuator, for example, the capacity (charging amount) of the battery 10 decreases. The power supply from the battery 10 to the drive motor 3 may be limited to a predetermined value or less due to a...
no. 3 example ）
[0152] In the first specific example and the second specific example described above, a constant value set within the range of the identification limit is used for the delay time td.
[0153] If the delay time td is preset within the range of the recognition limit, the driving experience will not be affected. However, since the recognition limit is short, setting the delay time td within the range of the recognition limit may increase the control load and cause the drive control to become unstable.
[0154] Therefore, from the viewpoint of control, it is preferable that the delay time td be larger, but if the delay time td is larger, the driver may feel a sense of incongruity due to recognition of delay in driving. Also, when the delay time td changes in a short time, poor driving is easily recognized, and the driver may feel uncomfortable. For example, when there is a large height difference on the driving road in a short period of time such as climbing over a mountain, even...
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