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Method and system for controlling an engine

A technology of engine and engine torque, applied in the direction of engine components, combustion engine, engine control, etc., can solve the problems of acceleration, difficult to ensure acceleration and deceleration, etc., and achieve the effect of improving vehicle acceleration and increasing vehicle braking force

Inactive Publication Date: 2016-09-07
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Propelling the vehicle by simultaneously commanding the vehicle to accelerate and decelerate makes it more difficult to ensure the operator has the desired level of control to accelerate and decelerate the vehicle
In particular, it can be difficult to provide both vacuum to actuate the vehicle brakes to decelerate the vehicle and engine torque to smoothly accelerate the vehicle after the vehicle brakes are at least partially released

Method used

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  • Method and system for controlling an engine
  • Method and system for controlling an engine
  • Method and system for controlling an engine

Examples

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Embodiment Construction

[0022] The invention relates to controlling an engine. In one example, engine torque is adjusted to reduce intake manifold pressure during an operator-initiated vehicle braking event so that brake assistance may be provided to the operator. figure 1 An example of an engine and brake booster system is shown. figure 2 An example of an engine in a vehicle is shown. image 3 A control block diagram of an exemplary engine torque control method is shown. image 3 The torque control method is used to control engine torque during a vehicle braking event and after the vehicle brake is released. Figure 4 An exemplary vehicle braking sequence to control engine torque is shown. At last, Figure 5 shown for controlling engine torque to provide Figure 4 method of order.

[0023] refer to figure 1 , an internal combustion engine 10 comprising a plurality of cylinders— figure 1 One of the cylinders is shown - controlled by the electronic engine controller 12 . Engine 10 includes c...

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PUM

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Abstract

The present invention discloses an engine with a fast vacuum recovery brake booster system. In one example, an actuator is modulated in response to flow between a brake booster and an engine intake manifold. The operation of the engine and vehicle brakes can be particularly improved when the engine is boosted.

Description

technical field [0001] The present invention relates to methods and systems for controlling an engine. Background technique [0002] Enhanced engine control has provided increased functionality as emissions and performance requirements have steadily increased. For example, electronically controlled throttles have improved vehicle drivability and improved engine emissions by adjusting the position of the engine throttle to regulate air flow to the engine so that fuel supply can more closely match air delivery to engine cylinders. However, an electronically controlled throttle may receive engine torque requests from some input, including from a vehicle operator. Also, the control to adjust the throttle position may also receive other inputs that are inconsistent or requested differently than the input that facilitates the determination of the throttle position. For example, some operators may choose to steer the vehicle with their two feet. Specifically, some operators may ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D9/02F02D11/10F01L13/00F01L1/047
CPCF02D41/107F02D41/1497F02D9/02F02D11/105F02D2200/0404F02D2200/0406F02D2250/18F02D2250/21F02D2250/41F02M35/10229F02D13/0219F02D13/0265F02D13/0269Y02T10/12
Inventor F·U·塞德M·A·博伊斯奇V·R·纳尔帕
Owner FORD GLOBAL TECH LLC
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