Vehicle speed control system and method

A vehicle speed and vehicle technology, applied in the direction of control/regulation system, speed/acceleration control, vehicle accessories, etc., can solve the problems that the accelerator and brake pedal control the vehicle speed, and the driver cannot use it

Active Publication Date: 2018-05-11
FCA US
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in these designs, the driver cannot use the accelerator and brake pedals to control the vehicle speed

Method used

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  • Vehicle speed control system and method
  • Vehicle speed control system and method
  • Vehicle speed control system and method

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Embodiment Construction

[0015] Before the disclosed embodiments of the technology are described in detail, it is to be understood that the technology is not limited in its application to the details of the particular arrangements shown herein, as the technology is capable of other embodiments. Furthermore, the terminology used herein is for the purpose of description and not limitation.

[0016] The systems and methods described herein provide speed selective control ("SSC"). SSC is a feature of the electronic brake control system that allows the vehicle to travel at a slow speed (ie, creep speed) selected by the driver. The system controls vehicle speed on level ground, uphill or downhill. A speed selective control system ("SSC system") is provided to enable the vehicle to travel over rough off-road terrain without driver input to the accelerator or brake. To control vehicle speed, the SSC may apply vehicle braking and request torque based on driver requests from the engine controller. The SSC fu...

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Abstract

A system and method for operating a vehicle at a target speed selected by a driver. The system and method are configured to identify a target speed based on the position of the shift selector, and control engine torque and brake pressure to control operation of the vehicle at the target speed. The system and method further provide for manipulating the vehicle's engine torque and brake pressure to operate at a speed desired by the driver in response to the driver's accelerator and brake commands.

Description

technical field [0001] The disclosure relates to speed control systems and methods for vehicles, and more particularly, the present disclosure relates to speed control systems and methods for vehicles operating at a low or creep speed selected by a driver. Background technique [0002] When driving a vehicle, especially off-road, it is important for the driver of the vehicle to be able to precisely and constantly control the speed of the vehicle. In some operating conditions this may be difficult to do. For example, off-road, extra engine torque is required as the vehicle often climbs rocks or other obstacles. However, immediately after the vehicle reaches the top of the obstacle, significantly less torque is required to maintain a substantially constant vehicle speed. In fact, it may be necessary to increase brake pressure to maintain a constant speed when driving down an obstacle. This transition from increased torque to decreased torque and braking can occur very quick...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K31/04F16H61/02
CPCB60K31/042B60W2540/10B60W2540/12B60W2540/16B60W2720/10B60W30/143B60W10/06B60W10/18
Inventor 扎卡里·C·罗加尔斯基伊万·罗曼洛伦·特罗特杰森·特朗布利
Owner FCA US
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