Vehicular control method, vehicular system, and vehicular control device

A control method and braking device technology, applied in the direction of control devices, electric braking systems, control drives, etc.

Active Publication Date: 2019-08-16
MAZDA MOTOR CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the conventional vehicle attitude control, it is not possible to appropriately adjust the deceleration added to the vehicle according to the acceleration and deceleration state of the vehicle which changes according to the operation of a single pedal.

Method used

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  • Vehicular control method, vehicular system, and vehicular control device
  • Vehicular control method, vehicular system, and vehicular control device
  • Vehicular control method, vehicular system, and vehicular control device

Examples

Experimental program
Comparison scheme
Effect test

Deformed example 1

[0092] In the above-mentioned embodiment, when the vehicle attitude control is performed during the braking of the vehicle 1, the motor generator 4 is caused to perform regenerative power generation so that the vehicle 1 produces the set additional deceleration (refer to image 3 ), but in another example, when the vehicle posture is controlled during braking of the vehicle 1, a braking force may be added from the braking device 16 to cause the vehicle 1 to generate a set additional deceleration.

[0093] Figure 10 It is a flowchart of vehicle posture control processing according to a modified example of the embodiment of the present invention. Figure 10 The illustrated vehicle attitude control processing is related to the vehicle attitude control performed during braking of the vehicle 1 (the vehicle attitude control performed during driving of the vehicle 1 is related to image 3 same). In addition, the following omits the appropriate image 3 The description of the sam...

Deformed example 2

[0104] In the above-described embodiment, in the region R12 where the accelerator pedal depression amount is smaller than the predetermined value A1, the additional deceleration gain is reduced as the accelerator pedal depression amount becomes smaller (see Figure 8 ), but it is not limited to specifying the additional deceleration gain like this. In another example, in the region R12 of the accelerator pedal depression amount, when the accelerator pedal depression amount is equal to or greater than a predetermined value, the additional deceleration gain may be decreased as the accelerator pedal depression amount becomes smaller, On the other hand, when the accelerator pedal depression amount is smaller than the predetermined value, the additional deceleration gain is set to a constant value regardless of the accelerator pedal depression amount (additional deceleration gain when the accelerator pedal depression amount is greater than the predetermined value) value below the d...

Deformed example 3

[0106] In the above-mentioned embodiment, the example in which the present invention is applied to the vehicle 1 (equivalent to an EV vehicle) driven by the motor generator 4 was shown, but in another example, the present invention can also be applied to a vehicle driven by the engine. general vehicle. In this example, it is sufficient to control the vehicle attitude by reducing the generated torque of the engine and adding deceleration to the vehicle 1 . When the engine is a gasoline engine, the generated torque of the engine may be reduced by retarding (delaying) the ignition timing of the spark plug. When the engine is a diesel engine, the generated torque of the engine may be reduced by reducing the fuel injection amount. Furthermore, in another example, the present invention can also be applied to a vehicle (HV vehicle) driven by an engine and a motor generator.

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PUM

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Abstract

In this vehicular control method and vehicular control device for imparting deceleration to a vehicle so as to control vehicle orientation when a steering device is steered, the deceleration is appropriately set on the basis of the manipulation of a single pedal. This vehicular control method is provided with: a step for imparting deceleration to a vehicle 1 according to the pressed amount of an accelerator pedal when the pressed amount of the accelerator pedal is greater than 0 and less than a predetermined value A1; a step for determining on the basis of the steering angle detected by a steering angle sensor 8 whether or not a steering device was steered; a step for imparting deceleration to the vehicle 1 so as to control vehicle orientation when it is determined that the steering devicewas steered; and a step for setting the deceleration such that the deceleration imparted, when the pressed amount of the accelerator pedal is less than the predetermined value and equal to a first value, is smaller than the deceleration imparted when the pressed amount of the accelerator pedal is less than the predetermined value and equal to a second value (> the first value).

Description

technical field [0001] The present invention relates to a vehicle control method, a vehicle system, and a vehicle control device for controlling additional deceleration of the vehicle under predetermined conditions. Background technique [0002] Conventionally, when the behavior of the vehicle becomes unstable due to slipping or the like, a technology (for example, a side-slip prevention device) is known that controls the behavior of the vehicle in a safe direction. Specifically, it is known that, when understeering or oversteering of the vehicle is detected when the vehicle is turning, etc., it is known to apply appropriate deceleration to the wheels to suppress understeering or oversteering. [0003] On the other hand, there is known a vehicle motion control device that is different from the control for improving safety in a running state in which the behavior of the vehicle becomes unstable as described above, in order to steer the vehicle in a normal running state The d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L15/20B60L7/10B60L7/24B60W30/045B60W10/04B60W10/188
CPCB60L15/2009B60L7/10B60L7/24B60W30/045B60W10/04B60W10/188B60L2240/12B60L2240/14B60L2240/24B60W2520/10B60W2540/10B60W2540/12B60W2540/18B60W2710/0666B60W2720/106B60L15/20B60L7/18B60W10/18B60W30/18181B60W30/18145B60W2710/18B60W2710/083B60W30/18127B60W20/15B60L7/26B60W10/08B60W10/184
Inventor 梅津大辅砂原修小川大策
Owner MAZDA MOTOR CORP
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