Patent EP0637809A2 successfully refreshed from Google Patents.
EP0637809A2
Expired / Lapsed
EP
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Method of and system for order amount calculation
Assignee: Toyota Motor Corp
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Filing: 1994-08-05
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Granted: —
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Expires: 2014-08-05
Abstract
Abstract An order amount of parts can be calculated from an actually used amount of the parts, so that the used parts can be resupplied subsequently. An order amount can also be calculated from a production plan, so that the parts necessary to meet the plan can be delivered. In this technique, an order amount is calculated by the equation " W1·X1 + W2·X2 ", where X1 is the order amount calculated in a subsequently resupplying way, X2 is the order amount calculated in a plan correspondence way, W1 is an actual weight, and W2 is a plan weight. The actual weight W1 becomes high and the plan weight W2 becomes low when the subsequently resupplying way is suitable, and vice versa. The actual weight W1 and the plan weight W2 can be calculated from experience or system analysis.
Inventors
- 👤 Kuniya Kaneko
- 👤 Takeshi Fukuyma
- 👤 Harumichi Wakiyama
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 02:36
CPC Classifications
G; G06; G06Q; G06Q10/00; G06Q10/06; G06Q10/063; G06Q10/0631; G06Q10/06315
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
136 words
A method of order amount calculation to calculate an order amount of parts to a preceding process from a self-process producing a product to be utilized in a subsequent process by using parts delivered from the preceding process, comprising: an actually used amount detection step for detecting the actually used amount of parts used in the self-process after the last ordering to the preceding process; a use plan amount calculation step for calculating the use plan amount of parts at a future instant after the time required from the ordering till the delivery; and an order amount determination step for determining the order amount of parts to the preceding process from the actually used amount detected in the actually used amount detection step and the use plan amount calculated in the use plan amount calculation step.
Claim 2
Dependent Claim
90 words
The method of order amount calculation according to claim 1, wherein the order amount is determined in the order amount determination step as the sum ( W1·X1 + W2·X2 ) of the product (W1·X1) of the amount (X1) detected in the actually used amount detection step and an actual weight (W1) and the product (W2·X2) of the amount (X2) calculated in the use plan amount calculation step and a plan weight (W2), the sum (W1 + W2) of the actual and plan weights (W1 and W2) being set to unity.
Claim 3
Dependent Claim
41 words
The method of order amount calculation according to claim 2, wherein the actual weight (W1) is determined on the basis of at least one of the values of the stock capacity, the stock time and the delivery and use lot amounts.
Claim 4
Dependent Claim
121 words
The method of order amount calculation according to claim 2, further comprising: a difference index calculation step for calculating the difference index (V) indicative of the extent of difference between the amount (X1) detected in the actually used amount detection step and the use plan amount (X2) at a future instant after the time required from the ordering till the delivery with respect to instant of detection of the amount (X1) as the starting time instant of calculation; an approximate relationship determination step for determining on approximate relationship holding between an influential factor and the difference index; and an actual weight determination step for determining the actual weight W1 according to the approximate relationship determined in the approximate relationship determination step.
Claim 5
Dependent Claim
54 words
The method of order amount calculation according to claim 4, wherein the influential factor is at least one of such factors as time required from the ordering till the delivery, parts delivery interval uniformity, delivery and use lot amounts, actual difference between the actual use and use plan amounts and label recovery interval uniformity.
Claim 6
Dependent Claim
131 words
The method of order amount calculation according to claim 4, further comprising: an estimated difference index calculation step for calculating estimated difference index from the approximate relationship determined in the approximate relationship determination step and an influential factor at the present instant; an estimated stock amount calculation step for calculating estimated stock amount from the stock amount at the present instant, detected actually used amount, past order amount, and the estimated difference index calculated in the estimated difference index calculation step; an evaluation value calculation step for calculating evaluation value (H) from the estimated stock amount calculated in the estimated stock amount calculation step and the stock capacity; and an actual weight determination step for determining the actual weight according to the evaluation value calculated in the evaluation value calculation step.
Claim 7
Independent Claim
157 words
An apparatus for order amount calculation to calculate the order amount of parts to a preceding process from a self-process producing a product to be utilized in a subsequent process by using parts delivered from the preceding process, comprising: a unit for detecting the actually used amount (X1) of parts used in the self-process after the last ordering to the preceding process; a unit for calculating the use plan amount (X2) of parts at a future instant after the time required from the ordering till the delivery; a unit for storing actual weight (W1) and plan weight (X2); and a unit for calculating the order amount by adding the product (W1·X1) of the detected actually used amount (X1) and the actual weight (W1) and the product (W2·X2) of the calculated use plan amount (X2) and the plan weight (W2); the sum (W1 + W2) of the actual and plan weights (W1 and W2) being set to unity.
References Cited (Backward Citations)
No citation records indexed.
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